Re: [Nouveau] [PATCH 2/7] mm: Free device private pages have zero refcount
Alistair Popple wrote:
>
> Dan Williams writes:
>
> > Alistair Popple wrote:
> >>
> >> Jason Gunthorpe writes:
> >>
> >> > On Mon, Sep 26, 2022 at 04:03:06PM +1000, Alistair Popple wrote:
> >> >> Since 27674ef6c73f ("mm: remove the extra ZONE_DEVICE struct page
> >> >> refcount") device private pages have no longer had an extra reference
> >> >> count when the page is in use. However before handing them back to the
> >> >> owning device driver we add an extra reference count such that free
> >> >> pages have a reference count of one.
> >> >>
> >> >> This makes it difficult to tell if a page is free or not because both
> >> >> free and in use pages will have a non-zero refcount. Instead we should
> >> >> return pages to the drivers page allocator with a zero reference count.
> >> >> Kernel code can then safely use kernel functions such as
> >> >> get_page_unless_zero().
> >> >>
> >> >> Signed-off-by: Alistair Popple
> >> >> ---
> >> >> arch/powerpc/kvm/book3s_hv_uvmem.c | 1 +
> >> >> drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 1 +
> >> >> drivers/gpu/drm/nouveau/nouveau_dmem.c | 1 +
> >> >> lib/test_hmm.c | 1 +
> >> >> mm/memremap.c| 5 -
> >> >> mm/page_alloc.c | 6 ++
> >> >> 6 files changed, 10 insertions(+), 5 deletions(-)
> >> >
> >> > I think this is a great idea, but I'm surprised no dax stuff is
> >> > touched here?
> >>
> >> free_zone_device_page() shouldn't be called for pgmap->type ==
> >> MEMORY_DEVICE_FS_DAX so I don't think we should have to worry about DAX
> >> there. Except that the folio code looks like it might have introduced a
> >> bug. AFAICT put_page() always calls
> >> put_devmap_managed_page(>page) but folio_put() does not (although
> >> folios_put() does!). So it seems folio_put() won't end up calling
> >> __put_devmap_managed_page_refs() as I think it should.
> >>
> >> I think you're right about the change to __init_zone_device_page() - I
> >> should limit it to DEVICE_PRIVATE/COHERENT pages only. But I need to
> >> look at Dan's patch series more closely as I suspect it might be better
> >> to rebase this patch on top of that.
> >
> > Apologies for the delay I was travelling the past few days. Yes, I think
> > this patch slots in nicely to avoid the introduction of an init_mode
> > [1]:
> >
> > https://lore.kernel.org/nvdimm/166329940343.2786261.6047770378829215962.st...@dwillia2-xfh.jf.intel.com/
> >
> > Mind if I steal it into my series?
>
> No problem, although I notice Andrew has already merged it into
> mm-unstable. If you end up rebasing your series on top of mine I think
> all that's needed is a patch somewhere in your series to drop the
> various `if (pgmap->type == MEMORY_DEVICE_*)` I added to (hopefully)
> avoid breaking DAX. Assuming DAX takes a pagemap reference on struct
> page allocation something like below.
Yeah, I'll go that route and rebase on top of -mm.
Thanks again.
Re: [Nouveau] [PATCH 2/7] mm: Free device private pages have zero refcount
Dan Williams writes:
> Alistair Popple wrote:
>>
>> Jason Gunthorpe writes:
>>
>> > On Mon, Sep 26, 2022 at 04:03:06PM +1000, Alistair Popple wrote:
>> >> Since 27674ef6c73f ("mm: remove the extra ZONE_DEVICE struct page
>> >> refcount") device private pages have no longer had an extra reference
>> >> count when the page is in use. However before handing them back to the
>> >> owning device driver we add an extra reference count such that free
>> >> pages have a reference count of one.
>> >>
>> >> This makes it difficult to tell if a page is free or not because both
>> >> free and in use pages will have a non-zero refcount. Instead we should
>> >> return pages to the drivers page allocator with a zero reference count.
>> >> Kernel code can then safely use kernel functions such as
>> >> get_page_unless_zero().
>> >>
>> >> Signed-off-by: Alistair Popple
>> >> ---
>> >> arch/powerpc/kvm/book3s_hv_uvmem.c | 1 +
>> >> drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 1 +
>> >> drivers/gpu/drm/nouveau/nouveau_dmem.c | 1 +
>> >> lib/test_hmm.c | 1 +
>> >> mm/memremap.c| 5 -
>> >> mm/page_alloc.c | 6 ++
>> >> 6 files changed, 10 insertions(+), 5 deletions(-)
>> >
>> > I think this is a great idea, but I'm surprised no dax stuff is
>> > touched here?
>>
>> free_zone_device_page() shouldn't be called for pgmap->type ==
>> MEMORY_DEVICE_FS_DAX so I don't think we should have to worry about DAX
>> there. Except that the folio code looks like it might have introduced a
>> bug. AFAICT put_page() always calls
>> put_devmap_managed_page(>page) but folio_put() does not (although
>> folios_put() does!). So it seems folio_put() won't end up calling
>> __put_devmap_managed_page_refs() as I think it should.
>>
>> I think you're right about the change to __init_zone_device_page() - I
>> should limit it to DEVICE_PRIVATE/COHERENT pages only. But I need to
>> look at Dan's patch series more closely as I suspect it might be better
>> to rebase this patch on top of that.
>
> Apologies for the delay I was travelling the past few days. Yes, I think
> this patch slots in nicely to avoid the introduction of an init_mode
> [1]:
>
> https://lore.kernel.org/nvdimm/166329940343.2786261.6047770378829215962.st...@dwillia2-xfh.jf.intel.com/
>
> Mind if I steal it into my series?
No problem, although I notice Andrew has already merged it into
mm-unstable. If you end up rebasing your series on top of mine I think
all that's needed is a patch somewhere in your series to drop the
various `if (pgmap->type == MEMORY_DEVICE_*)` I added to (hopefully)
avoid breaking DAX. Assuming DAX takes a pagemap reference on struct
page allocation something like below.
---
diff --git a/mm/memremap.c b/mm/memremap.c
index 421bec3a29ee..da1a0e0abb8b 100644
--- a/mm/memremap.c
+++ b/mm/memremap.c
@@ -507,15 +507,7 @@ void free_zone_device_page(struct page *page)
page->mapping = NULL;
page->pgmap->ops->page_free(page);
- if (page->pgmap->type != MEMORY_DEVICE_PRIVATE &&
- page->pgmap->type != MEMORY_DEVICE_COHERENT)
- /*
-* Reset the page count to 1 to prepare for handing out the page
-* again.
-*/
- set_page_count(page, 1);
- else
- put_dev_pagemap(page->pgmap);
+ put_dev_pagemap(page->pgmap);
}
void zone_device_page_init(struct page *page)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 014dbdf54d62..3e5ff06700ca 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6816,9 +6816,7 @@ static void __ref __init_zone_device_page(struct page
*page, unsigned long pfn,
* ZONE_DEVICE pages are released directly to the driver page allocator
* which will set the page count to 1 when allocating the page.
*/
- if (pgmap->type == MEMORY_DEVICE_PRIVATE ||
- pgmap->type == MEMORY_DEVICE_COHERENT)
- set_page_count(page, 0);
+ set_page_count(page, 0);
}
/*
Re: [Nouveau] [PATCH 2/7] mm: Free device private pages have zero refcount
Alistair Popple wrote:
>
> Jason Gunthorpe writes:
>
> > On Mon, Sep 26, 2022 at 04:03:06PM +1000, Alistair Popple wrote:
> >> Since 27674ef6c73f ("mm: remove the extra ZONE_DEVICE struct page
> >> refcount") device private pages have no longer had an extra reference
> >> count when the page is in use. However before handing them back to the
> >> owning device driver we add an extra reference count such that free
> >> pages have a reference count of one.
> >>
> >> This makes it difficult to tell if a page is free or not because both
> >> free and in use pages will have a non-zero refcount. Instead we should
> >> return pages to the drivers page allocator with a zero reference count.
> >> Kernel code can then safely use kernel functions such as
> >> get_page_unless_zero().
> >>
> >> Signed-off-by: Alistair Popple
> >> ---
> >> arch/powerpc/kvm/book3s_hv_uvmem.c | 1 +
> >> drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 1 +
> >> drivers/gpu/drm/nouveau/nouveau_dmem.c | 1 +
> >> lib/test_hmm.c | 1 +
> >> mm/memremap.c| 5 -
> >> mm/page_alloc.c | 6 ++
> >> 6 files changed, 10 insertions(+), 5 deletions(-)
> >
> > I think this is a great idea, but I'm surprised no dax stuff is
> > touched here?
>
> free_zone_device_page() shouldn't be called for pgmap->type ==
> MEMORY_DEVICE_FS_DAX so I don't think we should have to worry about DAX
> there. Except that the folio code looks like it might have introduced a
> bug. AFAICT put_page() always calls
> put_devmap_managed_page(>page) but folio_put() does not (although
> folios_put() does!). So it seems folio_put() won't end up calling
> __put_devmap_managed_page_refs() as I think it should.
>
> I think you're right about the change to __init_zone_device_page() - I
> should limit it to DEVICE_PRIVATE/COHERENT pages only. But I need to
> look at Dan's patch series more closely as I suspect it might be better
> to rebase this patch on top of that.
Apologies for the delay I was travelling the past few days. Yes, I think
this patch slots in nicely to avoid the introduction of an init_mode
[1]:
https://lore.kernel.org/nvdimm/166329940343.2786261.6047770378829215962.st...@dwillia2-xfh.jf.intel.com/
Mind if I steal it into my series?
Re: [Nouveau] [PATCH v2 2/8] mm: Free device private pages have zero refcount
On 2022-09-28 08:01, Alistair Popple wrote:
Since 27674ef6c73f ("mm: remove the extra ZONE_DEVICE struct page
refcount") device private pages have no longer had an extra reference
count when the page is in use. However before handing them back to the
owning device driver we add an extra reference count such that free
pages have a reference count of one.
This makes it difficult to tell if a page is free or not because both
free and in use pages will have a non-zero refcount. Instead we should
return pages to the drivers page allocator with a zero reference count.
Kernel code can then safely use kernel functions such as
get_page_unless_zero().
Signed-off-by: Alistair Popple
Acked-by: Felix Kuehling
Cc: Jason Gunthorpe
Cc: Michael Ellerman
Cc: Felix Kuehling
Cc: Alex Deucher
Cc: Christian König
Cc: Ben Skeggs
Cc: Lyude Paul
Cc: Ralph Campbell
Cc: Alex Sierra
Cc: John Hubbard
Cc: Dan Williams
---
This will conflict with Dan's series to fix reference counts for DAX[1].
At the moment this only makes changes for device private and coherent
pages, however if DAX is fixed to remove the extra refcount then we
should just be able to drop the checks for private/coherent pages and
treat them the same.
[1] -
https://lore.kernel.org/linux-mm/166329930818.2786261.6086109734008025807.st...@dwillia2-xfh.jf.intel.com/
---
arch/powerpc/kvm/book3s_hv_uvmem.c | 2 +-
drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 2 +-
drivers/gpu/drm/nouveau/nouveau_dmem.c | 2 +-
include/linux/memremap.h | 1 +
lib/test_hmm.c | 2 +-
mm/memremap.c| 9 +
mm/page_alloc.c | 8
7 files changed, 22 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c
b/arch/powerpc/kvm/book3s_hv_uvmem.c
index d4eacf4..9d8de68 100644
--- a/arch/powerpc/kvm/book3s_hv_uvmem.c
+++ b/arch/powerpc/kvm/book3s_hv_uvmem.c
@@ -718,7 +718,7 @@ static struct page *kvmppc_uvmem_get_page(unsigned long
gpa, struct kvm *kvm)
dpage = pfn_to_page(uvmem_pfn);
dpage->zone_device_data = pvt;
- lock_page(dpage);
+ zone_device_page_init(dpage);
return dpage;
out_clear:
spin_lock(_uvmem_bitmap_lock);
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index 776448b..97a6845 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
@@ -223,7 +223,7 @@ svm_migrate_get_vram_page(struct svm_range *prange,
unsigned long pfn)
page = pfn_to_page(pfn);
svm_range_bo_ref(prange->svm_bo);
page->zone_device_data = prange->svm_bo;
- lock_page(page);
+ zone_device_page_init(page);
}
static void
diff --git a/drivers/gpu/drm/nouveau/nouveau_dmem.c
b/drivers/gpu/drm/nouveau/nouveau_dmem.c
index 1635661..b092988 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dmem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dmem.c
@@ -326,7 +326,7 @@ nouveau_dmem_page_alloc_locked(struct nouveau_drm *drm)
return NULL;
}
- lock_page(page);
+ zone_device_page_init(page);
return page;
}
diff --git a/include/linux/memremap.h b/include/linux/memremap.h
index 1901049..f68bf6d 100644
--- a/include/linux/memremap.h
+++ b/include/linux/memremap.h
@@ -182,6 +182,7 @@ static inline bool folio_is_device_coherent(const struct
folio *folio)
}
#ifdef CONFIG_ZONE_DEVICE
+void zone_device_page_init(struct page *page);
void *memremap_pages(struct dev_pagemap *pgmap, int nid);
void memunmap_pages(struct dev_pagemap *pgmap);
void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap);
diff --git a/lib/test_hmm.c b/lib/test_hmm.c
index 89463ff..688c15d 100644
--- a/lib/test_hmm.c
+++ b/lib/test_hmm.c
@@ -627,8 +627,8 @@ static struct page *dmirror_devmem_alloc_page(struct
dmirror_device *mdevice)
goto error;
}
+ zone_device_page_init(dpage);
dpage->zone_device_data = rpage;
- lock_page(dpage);
return dpage;
error:
diff --git a/mm/memremap.c b/mm/memremap.c
index 25029a4..1c2c038 100644
--- a/mm/memremap.c
+++ b/mm/memremap.c
@@ -505,8 +505,17 @@ void free_zone_device_page(struct page *page)
/*
* Reset the page count to 1 to prepare for handing out the page again.
*/
+ if (page->pgmap->type != MEMORY_DEVICE_PRIVATE &&
+ page->pgmap->type != MEMORY_DEVICE_COHERENT)
+ set_page_count(page, 1);
+}
+
+void zone_device_page_init(struct page *page)
+{
set_page_count(page, 1);
+ lock_page(page);
}
+EXPORT_SYMBOL_GPL(zone_device_page_init);
#ifdef CONFIG_FS_DAX
bool __put_devmap_managed_page_refs(struct page *page, int refs)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 9d49803..4df1e43 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6744,6 +6744,14 @@ static
Re: [Nouveau] [PATCH v2 1/8] mm/memory.c: Fix race when faulting a device private page
On 2022-09-28 08:01, Alistair Popple wrote:
When the CPU tries to access a device private page the migrate_to_ram()
callback associated with the pgmap for the page is called. However no
reference is taken on the faulting page. Therefore a concurrent
migration of the device private page can free the page and possibly the
underlying pgmap. This results in a race which can crash the kernel due
to the migrate_to_ram() function pointer becoming invalid. It also means
drivers can't reliably read the zone_device_data field because the page
may have been freed with memunmap_pages().
Close the race by getting a reference on the page while holding the ptl
to ensure it has not been freed. Unfortunately the elevated reference
count will cause the migration required to handle the fault to fail. To
avoid this failure pass the faulting page into the migrate_vma functions
so that if an elevated reference count is found it can be checked to see
if it's expected or not.
Do we really have to drag the fault_page all the way into the migrate
structure? Is the elevated refcount still needed at that time? Maybe it
would be easier to drop the refcount early in the ops->migrage_to_ram
callbacks, so we won't have to deal with it in all the migration code.
Regards,
Felix
Signed-off-by: Alistair Popple
Cc: Jason Gunthorpe
Cc: John Hubbard
Cc: Ralph Campbell
Cc: Michael Ellerman
Cc: Felix Kuehling
Cc: Lyude Paul
---
arch/powerpc/kvm/book3s_hv_uvmem.c | 15 ++-
drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 17 +++--
drivers/gpu/drm/amd/amdkfd/kfd_migrate.h | 2 +-
drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 11 +---
include/linux/migrate.h | 8 ++-
lib/test_hmm.c | 7 ++---
mm/memory.c | 16 +++-
mm/migrate.c | 34 ++---
mm/migrate_device.c | 18 +
9 files changed, 87 insertions(+), 41 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c
b/arch/powerpc/kvm/book3s_hv_uvmem.c
index 5980063..d4eacf4 100644
--- a/arch/powerpc/kvm/book3s_hv_uvmem.c
+++ b/arch/powerpc/kvm/book3s_hv_uvmem.c
@@ -508,10 +508,10 @@ unsigned long kvmppc_h_svm_init_start(struct kvm *kvm)
static int __kvmppc_svm_page_out(struct vm_area_struct *vma,
unsigned long start,
unsigned long end, unsigned long page_shift,
- struct kvm *kvm, unsigned long gpa)
+ struct kvm *kvm, unsigned long gpa, struct page *fault_page)
{
unsigned long src_pfn, dst_pfn = 0;
- struct migrate_vma mig;
+ struct migrate_vma mig = { 0 };
struct page *dpage, *spage;
struct kvmppc_uvmem_page_pvt *pvt;
unsigned long pfn;
@@ -525,6 +525,7 @@ static int __kvmppc_svm_page_out(struct vm_area_struct *vma,
mig.dst = _pfn;
mig.pgmap_owner = _uvmem_pgmap;
mig.flags = MIGRATE_VMA_SELECT_DEVICE_PRIVATE;
+ mig.fault_page = fault_page;
/* The requested page is already paged-out, nothing to do */
if (!kvmppc_gfn_is_uvmem_pfn(gpa >> page_shift, kvm, NULL))
@@ -580,12 +581,14 @@ static int __kvmppc_svm_page_out(struct vm_area_struct
*vma,
static inline int kvmppc_svm_page_out(struct vm_area_struct *vma,
unsigned long start, unsigned long end,
unsigned long page_shift,
- struct kvm *kvm, unsigned long gpa)
+ struct kvm *kvm, unsigned long gpa,
+ struct page *fault_page)
{
int ret;
mutex_lock(>arch.uvmem_lock);
- ret = __kvmppc_svm_page_out(vma, start, end, page_shift, kvm, gpa);
+ ret = __kvmppc_svm_page_out(vma, start, end, page_shift, kvm, gpa,
+ fault_page);
mutex_unlock(>arch.uvmem_lock);
return ret;
@@ -736,7 +739,7 @@ static int kvmppc_svm_page_in(struct vm_area_struct *vma,
bool pagein)
{
unsigned long src_pfn, dst_pfn = 0;
- struct migrate_vma mig;
+ struct migrate_vma mig = { 0 };
struct page *spage;
unsigned long pfn;
struct page *dpage;
@@ -994,7 +997,7 @@ static vm_fault_t kvmppc_uvmem_migrate_to_ram(struct
vm_fault *vmf)
if (kvmppc_svm_page_out(vmf->vma, vmf->address,
vmf->address + PAGE_SIZE, PAGE_SHIFT,
- pvt->kvm, pvt->gpa))
+ pvt->kvm, pvt->gpa, vmf->page))
return VM_FAULT_SIGBUS;
else
return 0;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index b059a77..776448b 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
@@ -409,7 +409,7 @@
[Nouveau] [PATCH v4 15/30] drm/modes: Move named modes parsing to a separate function
The current construction of the named mode parsing doesn't allow to extend
it easily. Let's move it to a separate function so we can add more
parameters and modes.
In order for the tests to still pass, some extra checks are needed, so
it's not a 1:1 move.
Signed-off-by: Maxime Ripard
---
Changes in v4:
- Fold down all the named mode patches that were split into a single
patch again to maintain bisectability
---
drivers/gpu/drm/drm_modes.c | 73 ++---
1 file changed, 62 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index c0dceff51cac..2f020ef2ddf2 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2229,6 +2229,55 @@ static const char * const drm_named_modes_whitelist[] = {
"PAL",
};
+static int drm_mode_parse_cmdline_named_mode(const char *name,
+unsigned int name_end,
+struct drm_cmdline_mode
*cmdline_mode)
+{
+ unsigned int i;
+
+ if (!name_end)
+ return 0;
+
+ /* If the name starts with a digit, it's not a named mode */
+ if (isdigit(name[0]))
+ return 0;
+
+ /*
+* If there's an equal sign in the name, the command-line
+* contains only an option and no mode.
+*/
+ if (strnchr(name, name_end, '='))
+ return 0;
+
+#define STR_STRICT_EQ(str, len, cmp) \
+ (str_has_prefix(str, cmp) == len)
+
+ /* The connection status extras can be set without a mode. */
+ if (STR_STRICT_EQ(name, name_end, "d") ||
+ STR_STRICT_EQ(name, name_end, "D") ||
+ STR_STRICT_EQ(name, name_end, "e"))
+ return 0;
+
+ /*
+* We're sure we're a named mode at that point, iterate over the
+* list of modes we're aware of.
+*/
+ for (i = 0; i < ARRAY_SIZE(drm_named_modes_whitelist); i++) {
+ int ret;
+
+ ret = str_has_prefix(name, drm_named_modes_whitelist[i]);
+ if (ret != name_end)
+ continue;
+
+ strcpy(cmdline_mode->name, drm_named_modes_whitelist[i]);
+ cmdline_mode->specified = true;
+
+ return 1;
+ }
+
+ return -EINVAL;
+}
+
/**
* drm_mode_parse_command_line_for_connector - parse command line modeline for
connector
* @mode_option: optional per connector mode option
@@ -2265,7 +2314,7 @@ bool drm_mode_parse_command_line_for_connector(const char
*mode_option,
const char *bpp_ptr = NULL, *refresh_ptr = NULL, *extra_ptr = NULL;
const char *options_ptr = NULL;
char *bpp_end_ptr = NULL, *refresh_end_ptr = NULL;
- int i, len, ret;
+ int len, ret;
memset(mode, 0, sizeof(*mode));
mode->panel_orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
@@ -2306,17 +2355,19 @@ bool drm_mode_parse_command_line_for_connector(const
char *mode_option,
parse_extras = true;
}
- /* First check for a named mode */
- for (i = 0; i < ARRAY_SIZE(drm_named_modes_whitelist); i++) {
- ret = str_has_prefix(name, drm_named_modes_whitelist[i]);
- if (ret == mode_end) {
- if (refresh_ptr)
- return false; /* named + refresh is invalid */
- strcpy(mode->name, drm_named_modes_whitelist[i]);
- mode->specified = true;
- break;
- }
+ if (mode_end) {
+ ret = drm_mode_parse_cmdline_named_mode(name, mode_end, mode);
+ if (ret < 0)
+ return false;
+
+ /*
+* Having a mode that starts by a letter (and thus is named)
+* and an at-sign (used to specify a refresh rate) is
+* disallowed.
+*/
+ if (ret && refresh_ptr)
+ return false;
}
/* No named mode? Check for a normal mode argument, e.g. 1024x768 */
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 28/30] drm/vc4: vec: Convert to the new TV mode property
Now that the core can deal fine with analog TV modes, let's convert the vc4
VEC driver to leverage those new features.
We've added some backward compatibility to support the old TV mode property
and translate it into the new TV norm property. We're also making use of
the new analog TV atomic_check helper to make sure we trigger a modeset
whenever the TV mode is updated.
Acked-by: Noralf Trønnes
Signed-off-by: Maxime Ripard
---
Changes in v4:
- Removed the count variable in .get_modes
---
drivers/gpu/drm/vc4/vc4_vec.c | 192 +++---
1 file changed, 144 insertions(+), 48 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index 1fcb7baf874e..b342dc9cf69c 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -172,6 +172,8 @@ struct vc4_vec {
struct clk *clock;
+ struct drm_property *legacy_tv_mode_property;
+
struct debugfs_regset32 regset;
};
@@ -184,6 +186,12 @@ encoder_to_vc4_vec(struct drm_encoder *encoder)
return container_of(encoder, struct vc4_vec, encoder.base);
}
+static inline struct vc4_vec *
+connector_to_vc4_vec(struct drm_connector *connector)
+{
+ return container_of(connector, struct vc4_vec, connector);
+}
+
enum vc4_vec_tv_mode_id {
VC4_VEC_TV_MODE_NTSC,
VC4_VEC_TV_MODE_NTSC_J,
@@ -192,7 +200,7 @@ enum vc4_vec_tv_mode_id {
};
struct vc4_vec_tv_mode {
- const struct drm_display_mode *mode;
+ unsigned int mode;
u32 config0;
u32 config1;
u32 custom_freq;
@@ -225,43 +233,51 @@ static const struct debugfs_reg32 vec_regs[] = {
VC4_REG32(VEC_DAC_MISC),
};
-static const struct drm_display_mode ntsc_mode = {
- DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
-720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
-480, 480 + 7, 480 + 7 + 6, 525, 0,
-DRM_MODE_FLAG_INTERLACE)
-};
-
-static const struct drm_display_mode pal_mode = {
- DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
-720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
-576, 576 + 4, 576 + 4 + 6, 625, 0,
-DRM_MODE_FLAG_INTERLACE)
-};
-
static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
- [VC4_VEC_TV_MODE_NTSC] = {
- .mode = _mode,
+ {
+ .mode = DRM_MODE_TV_MODE_NTSC,
.config0 = VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
- [VC4_VEC_TV_MODE_NTSC_J] = {
- .mode = _mode,
+ {
+ .mode = DRM_MODE_TV_MODE_NTSC_J,
.config0 = VEC_CONFIG0_NTSC_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
- [VC4_VEC_TV_MODE_PAL] = {
- .mode = _mode,
+ {
+ .mode = DRM_MODE_TV_MODE_PAL,
.config0 = VEC_CONFIG0_PAL_BDGHI_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
- [VC4_VEC_TV_MODE_PAL_M] = {
- .mode = _mode,
+ {
+ .mode = DRM_MODE_TV_MODE_PAL_M,
.config0 = VEC_CONFIG0_PAL_M_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
};
+static inline const struct vc4_vec_tv_mode *
+vc4_vec_tv_mode_lookup(unsigned int mode)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(vc4_vec_tv_modes); i++) {
+ const struct vc4_vec_tv_mode *tv_mode = _vec_tv_modes[i];
+
+ if (tv_mode->mode == mode)
+ return tv_mode;
+ }
+
+ return NULL;
+}
+
+static const struct drm_prop_enum_list tv_mode_names[] = {
+ { VC4_VEC_TV_MODE_NTSC, "NTSC", },
+ { VC4_VEC_TV_MODE_NTSC_J, "NTSC-J", },
+ { VC4_VEC_TV_MODE_PAL, "PAL", },
+ { VC4_VEC_TV_MODE_PAL_M, "PAL-M", },
+};
+
static enum drm_connector_status
vc4_vec_connector_detect(struct drm_connector *connector, bool force)
{
@@ -276,19 +292,96 @@ static void vc4_vec_connector_reset(struct drm_connector
*connector)
static int vc4_vec_connector_get_modes(struct drm_connector *connector)
{
- struct drm_connector_state *state = connector->state;
struct drm_display_mode *mode;
- mode = drm_mode_duplicate(connector->dev,
- vc4_vec_tv_modes[state->tv.legacy_mode].mode);
+ mode = drm_mode_analog_ntsc_480i(connector->dev);
if (!mode) {
DRM_ERROR("Failed to create a new display mode\n");
return -ENOMEM;
}
+ mode->type |= DRM_MODE_TYPE_PREFERRED;
drm_mode_probed_add(connector, mode);
- return 1;
+ mode = drm_mode_analog_pal_576i(connector->dev);
+ if (!mode) {
+ DRM_ERROR("Failed to create a new display mode\n");
+ return -ENOMEM;
+ }
+
+ drm_mode_probed_add(connector, mode);
+
+ return 2;
+}
+
[Nouveau] [PATCH v4 27/30] drm/vc4: vec: Check for VEC output constraints
From: Mateusz Kwiatkowski
The VEC can accept pretty much any relatively reasonable mode, but still
has a bunch of constraints to meet.
Let's create an atomic_check() implementation that will make sure we
don't end up accepting a non-functional mode.
Acked-by: Noralf Trønnes
Signed-off-by: Mateusz Kwiatkowski
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/vc4/vc4_vec.c | 48 +++
1 file changed, 48 insertions(+)
diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index 90e375a8a8f9..1fcb7baf874e 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -453,6 +453,7 @@ static int vc4_vec_encoder_atomic_check(struct drm_encoder
*encoder,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
+ const struct drm_display_mode *mode = _state->adjusted_mode;
const struct vc4_vec_tv_mode *vec_mode;
vec_mode = _vec_tv_modes[conn_state->tv.legacy_mode];
@@ -461,6 +462,53 @@ static int vc4_vec_encoder_atomic_check(struct drm_encoder
*encoder,
!drm_mode_equal(vec_mode->mode, _state->adjusted_mode))
return -EINVAL;
+ if (mode->crtc_hdisplay % 4)
+ return -EINVAL;
+
+ if (!(mode->crtc_hsync_end - mode->crtc_hsync_start))
+ return -EINVAL;
+
+ switch (mode->vtotal) {
+ case 525:
+ if (mode->crtc_vtotal > 262)
+ return -EINVAL;
+
+ if (mode->crtc_vdisplay < 1 || mode->crtc_vdisplay > 253)
+ return -EINVAL;
+
+ if (!(mode->crtc_vsync_start - mode->crtc_vdisplay))
+ return -EINVAL;
+
+ if ((mode->crtc_vsync_end - mode->crtc_vsync_start) != 3)
+ return -EINVAL;
+
+ if ((mode->crtc_vtotal - mode->crtc_vsync_end) < 4)
+ return -EINVAL;
+
+ break;
+
+ case 625:
+ if (mode->crtc_vtotal > 312)
+ return -EINVAL;
+
+ if (mode->crtc_vdisplay < 1 || mode->crtc_vdisplay > 305)
+ return -EINVAL;
+
+ if (!(mode->crtc_vsync_start - mode->crtc_vdisplay))
+ return -EINVAL;
+
+ if ((mode->crtc_vsync_end - mode->crtc_vsync_start) != 3)
+ return -EINVAL;
+
+ if ((mode->crtc_vtotal - mode->crtc_vsync_end) < 2)
+ return -EINVAL;
+
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
return 0;
}
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 12/30] drm/modes: Only consider bpp and refresh before options
Some video= options might have a value that contains a dash. However, the
command line parsing mode considers all dashes as the separator between the
mode and the bpp count.
Let's rework the parsing code a bit to only consider a dash as the bpp
separator if it before a comma, the options separator.
A follow-up patch will add a unit-test for this once such an option is
introduced.
Reviewed-by: Geert Uytterhoeven
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_modes.c | 16 +---
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 7cf2fe98d7d2..99809ea09ce3 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2275,20 +2275,22 @@ bool drm_mode_parse_command_line_for_connector(const
char *mode_option,
name = mode_option;
+ /* Locate the start of named options */
+ options_ptr = strchr(name, ',');
+ if (options_ptr)
+ options_off = options_ptr - name;
+ else
+ options_off = strlen(name);
+
/* Try to locate the bpp and refresh specifiers, if any */
- bpp_ptr = strchr(name, '-');
+ bpp_ptr = strnchr(name, options_off, '-');
if (bpp_ptr)
bpp_off = bpp_ptr - name;
- refresh_ptr = strchr(name, '@');
+ refresh_ptr = strnchr(name, options_off, '@');
if (refresh_ptr)
refresh_off = refresh_ptr - name;
- /* Locate the start of named options */
- options_ptr = strchr(name, ',');
- if (options_ptr)
- options_off = options_ptr - name;
-
/* Locate the end of the name / resolution, and parse it */
if (bpp_ptr) {
mode_end = bpp_off;
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 30/30] drm/sun4i: tv: Convert to the new TV mode property
Now that the core can deal fine with analog TV modes, let's convert the
sun4i TV driver to leverage those new features.
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/sun4i/sun4i_tv.c | 148 ++-
drivers/gpu/drm/vc4/vc4_vec.c| 5 +-
2 files changed, 54 insertions(+), 99 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun4i_tv.c b/drivers/gpu/drm/sun4i/sun4i_tv.c
index c65f0a89b6b0..1a8f5b986a95 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tv.c
@@ -141,23 +141,14 @@ struct resync_parameters {
struct tv_mode {
char*name;
+ unsigned inttv_mode;
+
u32 mode;
u32 chroma_freq;
u16 back_porch;
u16 front_porch;
- u16 line_number;
u16 vblank_level;
- u32 hdisplay;
- u16 hfront_porch;
- u16 hsync_len;
- u16 hback_porch;
-
- u32 vdisplay;
- u16 vfront_porch;
- u16 vsync_len;
- u16 vback_porch;
-
boolyc_en;
booldac3_en;
booldac_bit25_en;
@@ -213,7 +204,7 @@ static const struct resync_parameters pal_resync_parameters
= {
static const struct tv_mode tv_modes[] = {
{
- .name = "NTSC",
+ .tv_mode= DRM_MODE_TV_MODE_NTSC,
.mode = SUN4I_TVE_CFG0_RES_480i,
.chroma_freq= 0x21f07c1f,
.yc_en = true,
@@ -222,17 +213,6 @@ static const struct tv_mode tv_modes[] = {
.back_porch = 118,
.front_porch= 32,
- .line_number= 525,
-
- .hdisplay = 720,
- .hfront_porch = 18,
- .hsync_len = 2,
- .hback_porch= 118,
-
- .vdisplay = 480,
- .vfront_porch = 26,
- .vsync_len = 2,
- .vback_porch= 17,
.vblank_level = 240,
@@ -242,23 +222,12 @@ static const struct tv_mode tv_modes[] = {
.resync_params = _resync_parameters,
},
{
- .name = "PAL",
+ .tv_mode= DRM_MODE_TV_MODE_PAL,
.mode = SUN4I_TVE_CFG0_RES_576i,
.chroma_freq= 0x2a098acb,
.back_porch = 138,
.front_porch= 24,
- .line_number= 625,
-
- .hdisplay = 720,
- .hfront_porch = 3,
- .hsync_len = 2,
- .hback_porch= 139,
-
- .vdisplay = 576,
- .vfront_porch = 28,
- .vsync_len = 2,
- .vback_porch= 19,
.vblank_level = 252,
@@ -276,63 +245,21 @@ drm_encoder_to_sun4i_tv(struct drm_encoder *encoder)
encoder);
}
-/*
- * FIXME: If only the drm_display_mode private field was usable, this
- * could go away...
- *
- * So far, it doesn't seem to be preserved when the mode is passed by
- * to mode_set for some reason.
- */
-static const struct tv_mode *sun4i_tv_find_tv_by_mode(const struct
drm_display_mode *mode)
+static const struct tv_mode *
+sun4i_tv_find_tv_by_mode(unsigned int mode)
{
int i;
- /* First try to identify the mode by name */
for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
const struct tv_mode *tv_mode = _modes[i];
- DRM_DEBUG_DRIVER("Comparing mode %s vs %s",
-mode->name, tv_mode->name);
-
- if (!strcmp(mode->name, tv_mode->name))
- return tv_mode;
- }
-
- /* Then by number of lines */
- for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
- const struct tv_mode *tv_mode = _modes[i];
-
- DRM_DEBUG_DRIVER("Comparing mode %s vs %s (X: %d vs %d)",
-mode->name, tv_mode->name,
-mode->vdisplay, tv_mode->vdisplay);
-
- if (mode->vdisplay == tv_mode->vdisplay)
+ if (tv_mode->tv_mode == mode)
return tv_mode;
}
return NULL;
}
-static void sun4i_tv_mode_to_drm_mode(const struct tv_mode *tv_mode,
- struct drm_display_mode *mode)
-{
- DRM_DEBUG_DRIVER("Creating mode %s\n", mode->name);
-
- mode->type = DRM_MODE_TYPE_DRIVER;
- mode->clock = 13500;
- mode->flags = DRM_MODE_FLAG_INTERLACE;
-
- mode->hdisplay = tv_mode->hdisplay;
- mode->hsync_start = mode->hdisplay + tv_mode->hfront_porch;
- mode->hsync_end = mode->hsync_start + tv_mode->hsync_len;
- mode->htotal =
[Nouveau] [PATCH v4 25/30] drm/vc4: vec: Fix definition of PAL-M mode
From: Mateusz Kwiatkowski
PAL-M is a Brazilian analog TV standard that uses a PAL-style chroma
subcarrier at 3.575611[888111] MHz on top of 525-line (480i60) timings.
This commit makes the driver actually use the proper VEC preset for this
mode instead of just changing PAL subcarrier frequency.
Acked-by: Noralf Trønnes
Signed-off-by: Mateusz Kwiatkowski
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/vc4/vc4_vec.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index 4d82ad30449b..adc9bf99e3fd 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -69,6 +69,7 @@
#define VEC_CONFIG0_STD_MASK GENMASK(1, 0)
#define VEC_CONFIG0_NTSC_STD 0
#define VEC_CONFIG0_PAL_BDGHI_STD 1
+#define VEC_CONFIG0_PAL_M_STD 2
#define VEC_CONFIG0_PAL_N_STD 3
#define VEC_SCHPH 0x108
@@ -255,10 +256,9 @@ static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
[VC4_VEC_TV_MODE_PAL_M] = {
- .mode = _mode,
- .config0 = VEC_CONFIG0_PAL_BDGHI_STD,
- .config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
- .custom_freq = 0x223b61d1,
+ .mode = _mode,
+ .config0 = VEC_CONFIG0_PAL_M_STD,
+ .config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
};
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 22/30] drm/modes: Introduce more named modes
Now that we can easily extend the named modes list, let's add a few more
analog TV modes that were used in the wild, and some unit tests to make
sure it works as intended.
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_modes.c | 2 +
drivers/gpu/drm/tests/drm_client_modeset_test.c | 54 +
2 files changed, 56 insertions(+)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index fe818252cd8f..e3307662d6da 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2271,7 +2271,9 @@ struct drm_named_mode {
static const struct drm_named_mode drm_named_modes[] = {
NAMED_MODE("NTSC", 13500, 720, 480, DRM_MODE_FLAG_INTERLACE,
DRM_MODE_TV_MODE_NTSC),
+ NAMED_MODE("NTSC-J", 13500, 720, 480, DRM_MODE_FLAG_INTERLACE,
DRM_MODE_TV_MODE_NTSC_J),
NAMED_MODE("PAL", 13500, 720, 576, DRM_MODE_FLAG_INTERLACE,
DRM_MODE_TV_MODE_PAL),
+ NAMED_MODE("PAL-M", 13500, 720, 480, DRM_MODE_FLAG_INTERLACE,
DRM_MODE_TV_MODE_PAL_M),
};
static int drm_mode_parse_cmdline_named_mode(const char *name,
diff --git a/drivers/gpu/drm/tests/drm_client_modeset_test.c
b/drivers/gpu/drm/tests/drm_client_modeset_test.c
index b59029b49201..b72433a0216a 100644
--- a/drivers/gpu/drm/tests/drm_client_modeset_test.c
+++ b/drivers/gpu/drm/tests/drm_client_modeset_test.c
@@ -134,6 +134,32 @@ static void drm_pick_cmdline_named_ntsc(struct kunit *test)
KUNIT_EXPECT_TRUE(test, drm_mode_equal(drm_mode_analog_ntsc_480i(drm),
mode));
}
+static void drm_pick_cmdline_named_ntsc_j(struct kunit *test)
+{
+ struct drm_client_modeset_test_priv *priv = test->priv;
+ struct drm_device *drm = priv->drm;
+ struct drm_connector *connector = >connector;
+ struct drm_cmdline_mode *cmdline_mode = >cmdline_mode;
+ struct drm_display_mode *mode;
+ const char *cmdline = "NTSC-J";
+ int ret;
+
+ KUNIT_ASSERT_TRUE(test,
+ drm_mode_parse_command_line_for_connector(cmdline,
+ connector,
+
cmdline_mode));
+
+ mutex_lock(>mode_config.mutex);
+ ret = drm_helper_probe_single_connector_modes(connector, 1920, 1080);
+ mutex_unlock(>mode_config.mutex);
+ KUNIT_ASSERT_GT(test, ret, 0);
+
+ mode = drm_connector_pick_cmdline_mode(connector);
+ KUNIT_ASSERT_PTR_NE(test, mode, NULL);
+
+ KUNIT_EXPECT_TRUE(test, drm_mode_equal(drm_mode_analog_ntsc_480i(drm),
mode));
+}
+
static void drm_pick_cmdline_named_pal(struct kunit *test)
{
struct drm_client_modeset_test_priv *priv = test->priv;
@@ -160,10 +186,38 @@ static void drm_pick_cmdline_named_pal(struct kunit *test)
KUNIT_EXPECT_TRUE(test, drm_mode_equal(drm_mode_analog_pal_576i(drm),
mode));
}
+static void drm_pick_cmdline_named_pal_m(struct kunit *test)
+{
+ struct drm_client_modeset_test_priv *priv = test->priv;
+ struct drm_device *drm = priv->drm;
+ struct drm_connector *connector = >connector;
+ struct drm_cmdline_mode *cmdline_mode = >cmdline_mode;
+ struct drm_display_mode *mode;
+ const char *cmdline = "PAL-M";
+ int ret;
+
+ KUNIT_ASSERT_TRUE(test,
+ drm_mode_parse_command_line_for_connector(cmdline,
+ connector,
+
cmdline_mode));
+
+ mutex_lock(>mode_config.mutex);
+ ret = drm_helper_probe_single_connector_modes(connector, 1920, 1080);
+ mutex_unlock(>mode_config.mutex);
+ KUNIT_ASSERT_GT(test, ret, 0);
+
+ mode = drm_connector_pick_cmdline_mode(connector);
+ KUNIT_ASSERT_PTR_NE(test, mode, NULL);
+
+ KUNIT_EXPECT_TRUE(test, drm_mode_equal(drm_mode_analog_ntsc_480i(drm),
mode));
+}
+
static struct kunit_case drm_pick_cmdline_tests[] = {
KUNIT_CASE(drm_pick_cmdline_res_1920_1080_60),
KUNIT_CASE(drm_pick_cmdline_named_ntsc),
+ KUNIT_CASE(drm_pick_cmdline_named_ntsc_j),
KUNIT_CASE(drm_pick_cmdline_named_pal),
+ KUNIT_CASE(drm_pick_cmdline_named_pal_m),
{}
};
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 20/30] drm/modes: Introduce the tv_mode property as a command-line option
Our new tv mode option allows to specify the TV mode from a property.
However, it can still be useful, for example to avoid any boot time
artifact, to set that property directly from the kernel command line.
Let's add some code to allow it, and some unit tests to exercise that code.
Signed-off-by: Maxime Ripard
---
Changes in v4:
- Add Documentation of the command-line option to modedb.rst
---
Documentation/fb/modedb.rst | 2 +
drivers/gpu/drm/drm_modes.c | 35 +++--
drivers/gpu/drm/tests/drm_cmdline_parser_test.c | 67 +
include/drm/drm_connector.h | 5 ++
4 files changed, 106 insertions(+), 3 deletions(-)
diff --git a/Documentation/fb/modedb.rst b/Documentation/fb/modedb.rst
index 4d2411e32ebb..5d6361a77f3c 100644
--- a/Documentation/fb/modedb.rst
+++ b/Documentation/fb/modedb.rst
@@ -65,6 +65,8 @@ Valid options are::
- reflect_y (boolean): Perform an axial symmetry on the Y axis
- rotate (integer): Rotate the initial framebuffer by x
degrees. Valid values are 0, 90, 180 and 270.
+ - tv_mode: Analog TV mode. One of "NTSC", "NTSC-443", "NTSC-J", "PAL",
+"PAL-M", "PAL-N", or "SECAM".
- panel_orientation, one of "normal", "upside_down", "left_side_up", or
"right_side_up". For KMS drivers only, this sets the "panel orientation"
property on the kms connector as hint for kms users.
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 068c78d54db2..c9b62e30e303 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2133,6 +2133,29 @@ static int drm_mode_parse_panel_orientation(const char
*delim,
return 0;
}
+static int drm_mode_parse_tv_mode(const char *delim,
+ struct drm_cmdline_mode *mode)
+{
+ const char *value;
+ int ret;
+
+ if (*delim != '=')
+ return -EINVAL;
+
+ value = delim + 1;
+ delim = strchr(value, ',');
+ if (!delim)
+ delim = value + strlen(value);
+
+ ret = drm_get_tv_mode_from_name(value, delim - value);
+ if (ret < 0)
+ return ret;
+
+ mode->tv_mode = ret;
+
+ return 0;
+}
+
static int drm_mode_parse_cmdline_options(const char *str,
bool freestanding,
const struct drm_connector *connector,
@@ -2202,6 +2225,9 @@ static int drm_mode_parse_cmdline_options(const char *str,
} else if (!strncmp(option, "panel_orientation", delim -
option)) {
if (drm_mode_parse_panel_orientation(delim, mode))
return -EINVAL;
+ } else if (!strncmp(option, "tv_mode", delim - option)) {
+ if (drm_mode_parse_tv_mode(delim, mode))
+ return -EINVAL;
} else {
return -EINVAL;
}
@@ -2230,20 +2256,22 @@ struct drm_named_mode {
unsigned int xres;
unsigned int yres;
unsigned int flags;
+ unsigned int tv_mode;
};
-#define NAMED_MODE(_name, _pclk, _x, _y, _flags) \
+#define NAMED_MODE(_name, _pclk, _x, _y, _flags, _mode)\
{ \
.name = _name, \
.pixel_clock_khz = _pclk, \
.xres = _x, \
.yres = _y, \
.flags = _flags,\
+ .tv_mode = _mode, \
}
static const struct drm_named_mode drm_named_modes[] = {
- NAMED_MODE("NTSC", 13500, 720, 480, DRM_MODE_FLAG_INTERLACE),
- NAMED_MODE("PAL", 13500, 720, 576, DRM_MODE_FLAG_INTERLACE),
+ NAMED_MODE("NTSC", 13500, 720, 480, DRM_MODE_FLAG_INTERLACE,
DRM_MODE_TV_MODE_NTSC),
+ NAMED_MODE("PAL", 13500, 720, 576, DRM_MODE_FLAG_INTERLACE,
DRM_MODE_TV_MODE_PAL),
};
static int drm_mode_parse_cmdline_named_mode(const char *name,
@@ -2292,6 +2320,7 @@ static int drm_mode_parse_cmdline_named_mode(const char
*name,
cmdline_mode->xres = mode->xres;
cmdline_mode->yres = mode->yres;
cmdline_mode->interlace = !!(mode->flags &
DRM_MODE_FLAG_INTERLACE);
+ cmdline_mode->tv_mode = mode->tv_mode;
cmdline_mode->specified = true;
return 1;
diff --git a/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
b/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
index 34790e7a3760..3e711b83b823 100644
--- a/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
+++ b/drivers/gpu/drm/tests/drm_cmdline_parser_test.c
@@ -927,6 +927,14 @@ static const struct drm_cmdline_invalid_test
drm_cmdline_invalid_tests[] = {
.name = "invalid_option",
.cmdline =
[Nouveau] [PATCH v4 29/30] drm/vc4: vec: Add support for more analog TV standards
From: Mateusz Kwiatkowski
Add support for the following composite output modes (all of them are
somewhat more obscure than the previously defined ones):
- NTSC_443 - NTSC-style signal with the chroma subcarrier shifted to
4.43361875 MHz (the PAL subcarrier frequency). Never used for
broadcasting, but sometimes used as a hack to play NTSC content in PAL
regions (e.g. on VCRs).
- PAL_N - PAL with alternative chroma subcarrier frequency,
3.58205625 MHz. Used as a broadcast standard in Argentina, Paraguay
and Uruguay to fit 576i50 with colour in 6 MHz channel raster.
- PAL60 - 480i60 signal with PAL-style color at normal European PAL
frequency. Another non-standard, non-broadcast mode, used in similar
contexts as NTSC_443. Some displays support one but not the other.
- SECAM - French frequency-modulated analog color standard; also have
been broadcast in Eastern Europe and various parts of Africa and Asia.
Uses the same 576i50 timings as PAL.
Also added some comments explaining color subcarrier frequency
registers.
Acked-by: Noralf Trønnes
Signed-off-by: Mateusz Kwiatkowski
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/vc4/vc4_vec.c | 84 ++-
1 file changed, 83 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index b342dc9cf69c..8d37d7ba9b2a 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -46,6 +46,7 @@
#define VEC_CONFIG0_YDEL(x)((x) << 26)
#define VEC_CONFIG0_CDEL_MASK GENMASK(25, 24)
#define VEC_CONFIG0_CDEL(x)((x) << 24)
+#define VEC_CONFIG0_SECAM_STD BIT(21)
#define VEC_CONFIG0_PBPR_FIL BIT(18)
#define VEC_CONFIG0_CHROMA_GAIN_MASK GENMASK(17, 16)
#define VEC_CONFIG0_CHROMA_GAIN_UNITY (0 << 16)
@@ -76,6 +77,27 @@
#define VEC_SOFT_RESET 0x10c
#define VEC_CLMP0_START0x144
#define VEC_CLMP0_END 0x148
+
+/*
+ * These set the color subcarrier frequency
+ * if VEC_CONFIG1_CUSTOM_FREQ is enabled.
+ *
+ * VEC_FREQ1_0 contains the most significant 16-bit half-word,
+ * VEC_FREQ3_2 contains the least significant 16-bit half-word.
+ * 0x8000 seems to be equivalent to the pixel clock
+ * (which itself is the VEC clock divided by 8).
+ *
+ * Reference values (with the default pixel clock of 13.5 MHz):
+ *
+ * NTSC (3579545.[45] Hz) - 0x21F07C1F
+ * PAL (4433618.75 Hz) - 0x2A098ACB
+ * PAL-M (3575611.[888111] Hz) - 0x21E6EFE3
+ * PAL-N (3582056.25 Hz) - 0x21F69446
+ *
+ * NOTE: For SECAM, it is used as the Dr center frequency,
+ * regardless of whether VEC_CONFIG1_CUSTOM_FREQ is enabled or not;
+ * that is specified as 4406250 Hz, which corresponds to 0x29C71C72.
+ */
#define VEC_FREQ3_20x180
#define VEC_FREQ1_00x184
@@ -118,6 +140,14 @@
#define VEC_INTERRUPT_CONTROL 0x190
#define VEC_INTERRUPT_STATUS 0x194
+
+/*
+ * Db center frequency for SECAM; the clock for this is the same as for
+ * VEC_FREQ3_2/VEC_FREQ1_0, which is used for Dr center frequency.
+ *
+ * This is specified as 425 Hz, which corresponds to 0x284BDA13.
+ * That is also the default value, so no need to set it explicitly.
+ */
#define VEC_FCW_SECAM_B0x198
#define VEC_SECAM_GAIN_VAL 0x19c
@@ -197,6 +227,10 @@ enum vc4_vec_tv_mode_id {
VC4_VEC_TV_MODE_NTSC_J,
VC4_VEC_TV_MODE_PAL,
VC4_VEC_TV_MODE_PAL_M,
+ VC4_VEC_TV_MODE_NTSC_443,
+ VC4_VEC_TV_MODE_PAL_60,
+ VC4_VEC_TV_MODE_PAL_N,
+ VC4_VEC_TV_MODE_SECAM,
};
struct vc4_vec_tv_mode {
@@ -239,6 +273,12 @@ static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
.config0 = VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
+ {
+ .mode = DRM_MODE_TV_MODE_NTSC_443,
+ .config0 = VEC_CONFIG0_NTSC_STD,
+ .config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
+ .custom_freq = 0x2a098acb,
+ },
{
.mode = DRM_MODE_TV_MODE_NTSC_J,
.config0 = VEC_CONFIG0_NTSC_STD,
@@ -254,6 +294,17 @@ static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
.config0 = VEC_CONFIG0_PAL_M_STD,
.config1 = VEC_CONFIG1_C_CVBS_CVBS,
},
+ {
+ .mode = DRM_MODE_TV_MODE_PAL_N,
+ .config0 = VEC_CONFIG0_PAL_N_STD,
+ .config1 = VEC_CONFIG1_C_CVBS_CVBS,
+ },
+ {
+ .mode = DRM_MODE_TV_MODE_SECAM,
+ .config0 = VEC_CONFIG0_SECAM_STD,
+ .config1 = VEC_CONFIG1_C_CVBS_CVBS,
+ .custom_freq = 0x29c71c72,
+ },
};
static inline const struct vc4_vec_tv_mode *
@@ -273,9 +324,13 @@ vc4_vec_tv_mode_lookup(unsigned int mode)
static const struct
[Nouveau] [PATCH v4 18/30] drm/connector: Add pixel clock to cmdline mode
We'll need to get the pixel clock to generate proper display modes for
all the current named modes. Let's add it to struct drm_cmdline_mode and
fill it when parsing the named mode.
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_modes.c | 9 ++---
include/drm/drm_connector.h | 7 +++
2 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 99453aca9a83..068c78d54db2 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2226,22 +2226,24 @@ static int drm_mode_parse_cmdline_options(const char
*str,
struct drm_named_mode {
const char *name;
+ unsigned int pixel_clock_khz;
unsigned int xres;
unsigned int yres;
unsigned int flags;
};
-#define NAMED_MODE(_name, _x, _y, _flags) \
+#define NAMED_MODE(_name, _pclk, _x, _y, _flags) \
{ \
.name = _name, \
+ .pixel_clock_khz = _pclk, \
.xres = _x, \
.yres = _y, \
.flags = _flags,\
}
static const struct drm_named_mode drm_named_modes[] = {
- NAMED_MODE("NTSC", 720, 480, DRM_MODE_FLAG_INTERLACE),
- NAMED_MODE("PAL", 720, 576, DRM_MODE_FLAG_INTERLACE),
+ NAMED_MODE("NTSC", 13500, 720, 480, DRM_MODE_FLAG_INTERLACE),
+ NAMED_MODE("PAL", 13500, 720, 576, DRM_MODE_FLAG_INTERLACE),
};
static int drm_mode_parse_cmdline_named_mode(const char *name,
@@ -2286,6 +2288,7 @@ static int drm_mode_parse_cmdline_named_mode(const char
*name,
continue;
strcpy(cmdline_mode->name, mode->name);
+ cmdline_mode->pixel_clock = mode->pixel_clock_khz;
cmdline_mode->xres = mode->xres;
cmdline_mode->yres = mode->yres;
cmdline_mode->interlace = !!(mode->flags &
DRM_MODE_FLAG_INTERLACE);
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index ef5f1c779de3..a501db7d 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1273,6 +1273,13 @@ struct drm_cmdline_mode {
*/
bool bpp_specified;
+ /**
+* @pixel_clock:
+*
+* Pixel Clock in kHz. Optional.
+*/
+ unsigned int pixel_clock;
+
/**
* @xres:
*
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 16/30] drm/modes: Switch to named mode descriptors
The current named mode parsing relies only the mode name, and doesn't allow
to specify any other parameter.
Let's convert that string list to an array of a custom structure that will
hold the name and some additional parameters in the future.
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_modes.c | 17 +++--
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 2f020ef2ddf2..7ed3fb839db7 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2224,9 +2224,13 @@ static int drm_mode_parse_cmdline_options(const char
*str,
return 0;
}
-static const char * const drm_named_modes_whitelist[] = {
- "NTSC",
- "PAL",
+struct drm_named_mode {
+ const char *name;
+};
+
+static const struct drm_named_mode drm_named_modes[] = {
+ { "NTSC", },
+ { "PAL", },
};
static int drm_mode_parse_cmdline_named_mode(const char *name,
@@ -2262,14 +2266,15 @@ static int drm_mode_parse_cmdline_named_mode(const char
*name,
* We're sure we're a named mode at that point, iterate over the
* list of modes we're aware of.
*/
- for (i = 0; i < ARRAY_SIZE(drm_named_modes_whitelist); i++) {
+ for (i = 0; i < ARRAY_SIZE(drm_named_modes); i++) {
+ const struct drm_named_mode *mode = _named_modes[i];
int ret;
- ret = str_has_prefix(name, drm_named_modes_whitelist[i]);
+ ret = str_has_prefix(name, mode->name);
if (ret != name_end)
continue;
- strcpy(cmdline_mode->name, drm_named_modes_whitelist[i]);
+ strcpy(cmdline_mode->name, mode->name);
cmdline_mode->specified = true;
return 1;
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 24/30] drm/atomic-helper: Add an analog TV atomic_check implementation
The analog TV connector drivers share some atomic_check logic, and the new
TV standard property have created some boilerplate that can be be shared
across drivers too.
Let's create an atomic_check helper for those use cases.
Reviewed-by: Noralf Trønnes
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_atomic_state_helper.c | 49 +++
include/drm/drm_atomic_state_helper.h | 3 ++
2 files changed, 52 insertions(+)
diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c
b/drivers/gpu/drm/drm_atomic_state_helper.c
index 0373c3dc824b..e88c57a4f7be 100644
--- a/drivers/gpu/drm/drm_atomic_state_helper.c
+++ b/drivers/gpu/drm/drm_atomic_state_helper.c
@@ -556,6 +556,55 @@ void drm_atomic_helper_connector_tv_reset(struct
drm_connector *connector)
}
EXPORT_SYMBOL(drm_atomic_helper_connector_tv_reset);
+/**
+ * @drm_atomic_helper_connector_tv_check: Validate an analog TV connector state
+ * @connector: DRM Connector
+ * @state: the DRM State object
+ *
+ * Checks the state object to see if the requested state is valid for an
+ * analog TV connector.
+ *
+ * Returns:
+ * Zero for success, a negative error code on error.
+ */
+int drm_atomic_helper_connector_tv_check(struct drm_connector *connector,
+struct drm_atomic_state *state)
+{
+ struct drm_connector_state *old_conn_state =
+ drm_atomic_get_old_connector_state(state, connector);
+ struct drm_connector_state *new_conn_state =
+ drm_atomic_get_new_connector_state(state, connector);
+ struct drm_crtc_state *crtc_state;
+ struct drm_crtc *crtc;
+
+ crtc = new_conn_state->crtc;
+ if (!crtc)
+ return 0;
+
+ crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
+ if (!crtc_state)
+ return -EINVAL;
+
+ if (old_conn_state->tv.mode != new_conn_state->tv.mode)
+ crtc_state->mode_changed = true;
+
+ if ((old_conn_state->tv.margins.left !=
new_conn_state->tv.margins.left) ||
+ (old_conn_state->tv.margins.right !=
new_conn_state->tv.margins.right) ||
+ (old_conn_state->tv.margins.top != new_conn_state->tv.margins.top)
||
+ (old_conn_state->tv.margins.bottom !=
new_conn_state->tv.margins.bottom) ||
+ (old_conn_state->tv.mode != new_conn_state->tv.mode) ||
+ (old_conn_state->tv.brightness != new_conn_state->tv.brightness) ||
+ (old_conn_state->tv.contrast != new_conn_state->tv.contrast) ||
+ (old_conn_state->tv.flicker_reduction !=
new_conn_state->tv.flicker_reduction) ||
+ (old_conn_state->tv.overscan != new_conn_state->tv.overscan) ||
+ (old_conn_state->tv.saturation != new_conn_state->tv.saturation) ||
+ (old_conn_state->tv.hue != new_conn_state->tv.hue))
+ crtc_state->connectors_changed = true;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_atomic_helper_connector_tv_check);
+
/**
* __drm_atomic_helper_connector_duplicate_state - copy atomic connector state
* @connector: connector object
diff --git a/include/drm/drm_atomic_state_helper.h
b/include/drm/drm_atomic_state_helper.h
index c8fbce795ee7..b9740edb2658 100644
--- a/include/drm/drm_atomic_state_helper.h
+++ b/include/drm/drm_atomic_state_helper.h
@@ -26,6 +26,7 @@
#include
+struct drm_atomic_state;
struct drm_bridge;
struct drm_bridge_state;
struct drm_crtc;
@@ -71,6 +72,8 @@ void __drm_atomic_helper_connector_reset(struct drm_connector
*connector,
struct drm_connector_state
*conn_state);
void drm_atomic_helper_connector_reset(struct drm_connector *connector);
void drm_atomic_helper_connector_tv_reset(struct drm_connector *connector);
+int drm_atomic_helper_connector_tv_check(struct drm_connector *connector,
+struct drm_atomic_state *state);
void drm_atomic_helper_connector_tv_margins_reset(struct drm_connector
*connector);
void
__drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector,
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 17/30] drm/modes: Fill drm_cmdline mode from named modes
The current code to deal with named modes will only set the mode name, and
then it's up to drivers to try to match that name to whatever mode or
configuration they see fit.
The plan is to remove that need and move the named mode handling out of
drivers and into the core, and only rely on modes and properties. Let's
start by properly filling drm_cmdline_mode from a named mode.
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_modes.c | 18 --
1 file changed, 16 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 7ed3fb839db7..99453aca9a83 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2226,11 +2226,22 @@ static int drm_mode_parse_cmdline_options(const char
*str,
struct drm_named_mode {
const char *name;
+ unsigned int xres;
+ unsigned int yres;
+ unsigned int flags;
};
+#define NAMED_MODE(_name, _x, _y, _flags) \
+ { \
+ .name = _name, \
+ .xres = _x, \
+ .yres = _y, \
+ .flags = _flags,\
+ }
+
static const struct drm_named_mode drm_named_modes[] = {
- { "NTSC", },
- { "PAL", },
+ NAMED_MODE("NTSC", 720, 480, DRM_MODE_FLAG_INTERLACE),
+ NAMED_MODE("PAL", 720, 576, DRM_MODE_FLAG_INTERLACE),
};
static int drm_mode_parse_cmdline_named_mode(const char *name,
@@ -2275,6 +2286,9 @@ static int drm_mode_parse_cmdline_named_mode(const char
*name,
continue;
strcpy(cmdline_mode->name, mode->name);
+ cmdline_mode->xres = mode->xres;
+ cmdline_mode->yres = mode->yres;
+ cmdline_mode->interlace = !!(mode->flags &
DRM_MODE_FLAG_INTERLACE);
cmdline_mode->specified = true;
return 1;
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 26/30] drm/vc4: vec: Use TV Reset implementation
The analog TV properties created by the drm_mode_create_tv_properties() are
not properly initialised at reset. Let's switch our implementation to call
drm_atomic_helper_connector_tv_reset().
Reviewed-by: Noralf Trønnes
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/vc4/vc4_vec.c | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c
index adc9bf99e3fd..90e375a8a8f9 100644
--- a/drivers/gpu/drm/vc4/vc4_vec.c
+++ b/drivers/gpu/drm/vc4/vc4_vec.c
@@ -268,6 +268,12 @@ vc4_vec_connector_detect(struct drm_connector *connector,
bool force)
return connector_status_unknown;
}
+static void vc4_vec_connector_reset(struct drm_connector *connector)
+{
+ drm_atomic_helper_connector_reset(connector);
+ drm_atomic_helper_connector_tv_reset(connector);
+}
+
static int vc4_vec_connector_get_modes(struct drm_connector *connector)
{
struct drm_connector_state *state = connector->state;
@@ -288,7 +294,7 @@ static int vc4_vec_connector_get_modes(struct drm_connector
*connector)
static const struct drm_connector_funcs vc4_vec_connector_funcs = {
.detect = vc4_vec_connector_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
- .reset = drm_atomic_helper_connector_reset,
+ .reset = vc4_vec_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 21/30] drm/modes: Properly generate a drm_display_mode from a named mode
The framework will get the drm_display_mode from the drm_cmdline_mode it
got by parsing the video command line argument by calling
drm_connector_pick_cmdline_mode().
The heavy lifting will then be done by the drm_mode_create_from_cmdline_mode()
function.
In the case of the named modes though, there's no real code to make that
translation and we rely on the drivers to guess which actual display mode
we meant.
Let's modify drm_mode_create_from_cmdline_mode() to properly generate the
drm_display_mode we mean when passing a named mode.
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_modes.c | 34 +++-
drivers/gpu/drm/tests/drm_client_modeset_test.c | 71 +
2 files changed, 104 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index c9b62e30e303..fe818252cd8f 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2500,6 +2500,36 @@ bool drm_mode_parse_command_line_for_connector(const
char *mode_option,
}
EXPORT_SYMBOL(drm_mode_parse_command_line_for_connector);
+static struct drm_display_mode *drm_named_mode(struct drm_device *dev,
+ struct drm_cmdline_mode *cmd)
+{
+ struct drm_display_mode *mode;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(drm_named_modes); i++) {
+ const struct drm_named_mode *named_mode = _named_modes[i];
+
+ if (strcmp(cmd->name, named_mode->name))
+ continue;
+
+ if (!named_mode->tv_mode)
+ continue;
+
+ mode = drm_analog_tv_mode(dev,
+ named_mode->tv_mode,
+ named_mode->pixel_clock_khz * 1000,
+ named_mode->xres,
+ named_mode->yres,
+ named_mode->flags &
DRM_MODE_FLAG_INTERLACE);
+ if (!mode)
+ return NULL;
+
+ return mode;
+ }
+
+ return NULL;
+}
+
/**
* drm_mode_create_from_cmdline_mode - convert a command line modeline into a
DRM display mode
* @dev: DRM device to create the new mode for
@@ -2517,7 +2547,9 @@ drm_mode_create_from_cmdline_mode(struct drm_device *dev,
if (cmd->xres == 0 || cmd->yres == 0)
return NULL;
- if (cmd->cvt)
+ if (strlen(cmd->name))
+ mode = drm_named_mode(dev, cmd);
+ else if (cmd->cvt)
mode = drm_cvt_mode(dev,
cmd->xres, cmd->yres,
cmd->refresh_specified ? cmd->refresh : 60,
diff --git a/drivers/gpu/drm/tests/drm_client_modeset_test.c
b/drivers/gpu/drm/tests/drm_client_modeset_test.c
index 09dc5acbbc42..b59029b49201 100644
--- a/drivers/gpu/drm/tests/drm_client_modeset_test.c
+++ b/drivers/gpu/drm/tests/drm_client_modeset_test.c
@@ -26,6 +26,20 @@ static int drm_client_modeset_connector_get_modes(struct
drm_connector *connecto
count = drm_add_modes_noedid(connector, 1920, 1200);
+ mode = drm_mode_analog_ntsc_480i(connector->dev);
+ if (!mode)
+ return -ENOMEM;
+
+ drm_mode_probed_add(connector, mode);
+ count += 1;
+
+ mode = drm_mode_analog_pal_576i(connector->dev);
+ if (!mode)
+ return -ENOMEM;
+
+ drm_mode_probed_add(connector, mode);
+ count += 1;
+
return count;
}
@@ -58,6 +72,9 @@ static int drm_client_modeset_test_init(struct kunit *test)
return ret;
drm_connector_helper_add(>connector,
_client_modeset_connector_helper_funcs);
+ priv->connector.interlace_allowed = true;
+ priv->connector.doublescan_allowed = true;
+
return 0;
}
@@ -91,8 +108,62 @@ static void drm_pick_cmdline_res_1920_1080_60(struct kunit
*test)
KUNIT_EXPECT_TRUE(test, drm_mode_equal(expected_mode, mode));
}
+static void drm_pick_cmdline_named_ntsc(struct kunit *test)
+{
+ struct drm_client_modeset_test_priv *priv = test->priv;
+ struct drm_device *drm = priv->drm;
+ struct drm_connector *connector = >connector;
+ struct drm_cmdline_mode *cmdline_mode = >cmdline_mode;
+ struct drm_display_mode *mode;
+ const char *cmdline = "NTSC";
+ int ret;
+
+ KUNIT_ASSERT_TRUE(test,
+ drm_mode_parse_command_line_for_connector(cmdline,
+ connector,
+
cmdline_mode));
+
+ mutex_lock(>mode_config.mutex);
+ ret = drm_helper_probe_single_connector_modes(connector, 1920, 1080);
+ mutex_unlock(>mode_config.mutex);
+ KUNIT_ASSERT_GT(test, ret, 0);
+
+ mode = drm_connector_pick_cmdline_mode(connector);
+
[Nouveau] [PATCH v4 23/30] drm/atomic-helper: Add a TV properties reset helper
The drm_tv_create_properties() function will create a bunch of properties,
but it's up to each and every driver using that function to properly reset
the state of these properties leading to inconsistent behaviours.
Let's create a helper that will take care of it.
Reviewed-by: Noralf Trønnes
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_atomic_state_helper.c | 75 +++
include/drm/drm_atomic_state_helper.h | 1 +
2 files changed, 76 insertions(+)
diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c
b/drivers/gpu/drm/drm_atomic_state_helper.c
index dfb57217253b..0373c3dc824b 100644
--- a/drivers/gpu/drm/drm_atomic_state_helper.c
+++ b/drivers/gpu/drm/drm_atomic_state_helper.c
@@ -481,6 +481,81 @@ void drm_atomic_helper_connector_tv_margins_reset(struct
drm_connector *connecto
}
EXPORT_SYMBOL(drm_atomic_helper_connector_tv_margins_reset);
+/**
+ * drm_atomic_helper_connector_tv_reset - Resets Analog TV connector properties
+ * @connector: DRM connector
+ *
+ * Resets the analog TV properties attached to a connector
+ */
+void drm_atomic_helper_connector_tv_reset(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_cmdline_mode *cmdline = >cmdline_mode;
+ struct drm_connector_state *state = connector->state;
+ struct drm_property *prop;
+ uint64_t val;
+
+ prop = dev->mode_config.tv_mode_property;
+ if (prop)
+ if (!drm_object_property_get_default_value(>base,
+ prop, ))
+ state->tv.mode = val;
+
+ if (cmdline->tv_mode)
+ state->tv.mode = cmdline->tv_mode;
+
+ prop = dev->mode_config.tv_select_subconnector_property;
+ if (prop)
+ if (!drm_object_property_get_default_value(>base,
+ prop, ))
+ state->tv.select_subconnector = val;
+
+ prop = dev->mode_config.tv_subconnector_property;
+ if (prop)
+ if (!drm_object_property_get_default_value(>base,
+ prop, ))
+ state->tv.subconnector = val;
+
+ prop = dev->mode_config.tv_brightness_property;
+ if (prop)
+ if (!drm_object_property_get_default_value(>base,
+ prop, ))
+ state->tv.brightness = val;
+
+ prop = dev->mode_config.tv_contrast_property;
+ if (prop)
+ if (!drm_object_property_get_default_value(>base,
+ prop, ))
+ state->tv.contrast = val;
+
+ prop = dev->mode_config.tv_flicker_reduction_property;
+ if (prop)
+ if (!drm_object_property_get_default_value(>base,
+ prop, ))
+ state->tv.flicker_reduction = val;
+
+ prop = dev->mode_config.tv_overscan_property;
+ if (prop)
+ if (!drm_object_property_get_default_value(>base,
+ prop, ))
+ state->tv.overscan = val;
+
+ prop = dev->mode_config.tv_saturation_property;
+ if (prop)
+ if (!drm_object_property_get_default_value(>base,
+ prop, ))
+ state->tv.saturation = val;
+
+ prop = dev->mode_config.tv_hue_property;
+ if (prop)
+ if (!drm_object_property_get_default_value(>base,
+ prop, ))
+ state->tv.hue = val;
+
+ drm_atomic_helper_connector_tv_margins_reset(connector);
+}
+EXPORT_SYMBOL(drm_atomic_helper_connector_tv_reset);
+
/**
* __drm_atomic_helper_connector_duplicate_state - copy atomic connector state
* @connector: connector object
diff --git a/include/drm/drm_atomic_state_helper.h
b/include/drm/drm_atomic_state_helper.h
index 192766656b88..c8fbce795ee7 100644
--- a/include/drm/drm_atomic_state_helper.h
+++ b/include/drm/drm_atomic_state_helper.h
@@ -70,6 +70,7 @@ void __drm_atomic_helper_connector_state_reset(struct
drm_connector_state *conn_
void __drm_atomic_helper_connector_reset(struct drm_connector *connector,
struct drm_connector_state
*conn_state);
void drm_atomic_helper_connector_reset(struct drm_connector *connector);
+void drm_atomic_helper_connector_tv_reset(struct drm_connector *connector);
void drm_atomic_helper_connector_tv_margins_reset(struct drm_connector
*connector);
void
__drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector,
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 19/30] drm/connector: Add a function to lookup a TV mode by its name
As part of the command line parsing rework coming in the next patches,
we'll need to lookup drm_connector_tv_mode values by their name, already
defined in drm_tv_mode_enum_list.
In order to avoid any code duplication, let's do a function that will
perform a lookup of a TV mode name and return its value.
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_connector.c | 24
include/drm/drm_connector.h | 2 ++
2 files changed, 26 insertions(+)
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 8edc347ef664..ead5b30c193c 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -991,6 +991,30 @@ static const struct drm_prop_enum_list
drm_tv_mode_enum_list[] = {
};
DRM_ENUM_NAME_FN(drm_get_tv_mode_name, drm_tv_mode_enum_list)
+/**
+ * drm_get_tv_mode_from_name - Translates a TV mode name into its enum value
+ * @name: TV Mode name we want to convert
+ * @len: Length of @name
+ *
+ * Translates @name into an enum drm_connector_tv_mode.
+ *
+ * Returns: the enum value on success, a negative errno otherwise.
+ */
+int drm_get_tv_mode_from_name(const char *name, size_t len)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(drm_tv_mode_enum_list); i++) {
+ const struct drm_prop_enum_list *item =
_tv_mode_enum_list[i];
+
+ if (strlen(item->name) == len && !strncmp(item->name, name,
len))
+ return item->type;
+ }
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL(drm_get_tv_mode_from_name);
+
static const struct drm_prop_enum_list drm_tv_select_enum_list[] = {
{ DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
{ DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index a501db7d..a33f24a76738 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1864,6 +1864,8 @@ const char *drm_get_dp_subconnector_name(int val);
const char *drm_get_content_protection_name(int val);
const char *drm_get_hdcp_content_type_name(int val);
+int drm_get_tv_mode_from_name(const char *name, size_t len);
+
int drm_mode_create_dvi_i_properties(struct drm_device *dev);
void drm_connector_attach_dp_subconnector_property(struct drm_connector
*connector);
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 14/30] drm/client: Add some tests for drm_connector_pick_cmdline_mode()
drm_connector_pick_cmdline_mode() is in charge of finding a proper
drm_display_mode from the definition we got in the video= command line
argument.
Let's add some unit tests to make sure we're not getting any regressions
there.
Signed-off-by: Maxime Ripard
---
Changes in v4:
- Removed MODULE macros
---
drivers/gpu/drm/drm_client_modeset.c| 4 +
drivers/gpu/drm/tests/drm_client_modeset_test.c | 105
2 files changed, 109 insertions(+)
diff --git a/drivers/gpu/drm/drm_client_modeset.c
b/drivers/gpu/drm/drm_client_modeset.c
index bbc535cc50dd..d553e793e673 100644
--- a/drivers/gpu/drm/drm_client_modeset.c
+++ b/drivers/gpu/drm/drm_client_modeset.c
@@ -1237,3 +1237,7 @@ int drm_client_modeset_dpms(struct drm_client_dev
*client, int mode)
return ret;
}
EXPORT_SYMBOL(drm_client_modeset_dpms);
+
+#ifdef CONFIG_DRM_KUNIT_TEST
+#include "tests/drm_client_modeset_test.c"
+#endif
diff --git a/drivers/gpu/drm/tests/drm_client_modeset_test.c
b/drivers/gpu/drm/tests/drm_client_modeset_test.c
new file mode 100644
index ..09dc5acbbc42
--- /dev/null
+++ b/drivers/gpu/drm/tests/drm_client_modeset_test.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022 Maxime Ripard
+ */
+
+#include
+
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include "drm_kunit_helpers.h"
+
+struct drm_client_modeset_test_priv {
+ struct drm_device *drm;
+ struct drm_connector connector;
+};
+
+static int drm_client_modeset_connector_get_modes(struct drm_connector
*connector)
+{
+ struct drm_display_mode *mode;
+ int count;
+
+ count = drm_add_modes_noedid(connector, 1920, 1200);
+
+ return count;
+}
+
+static const struct drm_connector_helper_funcs
drm_client_modeset_connector_helper_funcs = {
+ .get_modes = drm_client_modeset_connector_get_modes,
+};
+
+static const struct drm_connector_funcs drm_client_modeset_connector_funcs = {
+};
+
+static int drm_client_modeset_test_init(struct kunit *test)
+{
+ struct drm_client_modeset_test_priv *priv;
+ int ret;
+
+ priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+ test->priv = priv;
+
+ priv->drm = drm_kunit_device_init(test, "drm-client-modeset-test");
+ if (IS_ERR(priv->drm))
+ return PTR_ERR(priv->drm);
+
+ ret = drmm_connector_init(priv->drm, >connector,
+ _client_modeset_connector_funcs,
+ DRM_MODE_CONNECTOR_Unknown,
+ NULL);
+ if (ret)
+ return ret;
+ drm_connector_helper_add(>connector,
_client_modeset_connector_helper_funcs);
+
+ return 0;
+
+}
+
+static void drm_pick_cmdline_res_1920_1080_60(struct kunit *test)
+{
+ struct drm_client_modeset_test_priv *priv = test->priv;
+ struct drm_device *drm = priv->drm;
+ struct drm_connector *connector = >connector;
+ struct drm_cmdline_mode *cmdline_mode = >cmdline_mode;
+ struct drm_display_mode *expected_mode, *mode;
+ const char *cmdline = "1920x1080@60";
+ int ret;
+
+ expected_mode = drm_mode_find_dmt(priv->drm, 1920, 1080, 60, false);
+ KUNIT_ASSERT_PTR_NE(test, expected_mode, NULL);
+
+ KUNIT_ASSERT_TRUE(test,
+ drm_mode_parse_command_line_for_connector(cmdline,
+ connector,
+
cmdline_mode));
+
+ mutex_lock(>mode_config.mutex);
+ ret = drm_helper_probe_single_connector_modes(connector, 1920, 1080);
+ mutex_unlock(>mode_config.mutex);
+ KUNIT_ASSERT_GT(test, ret, 0);
+
+ mode = drm_connector_pick_cmdline_mode(connector);
+ KUNIT_ASSERT_PTR_NE(test, mode, NULL);
+
+ KUNIT_EXPECT_TRUE(test, drm_mode_equal(expected_mode, mode));
+}
+
+static struct kunit_case drm_pick_cmdline_tests[] = {
+ KUNIT_CASE(drm_pick_cmdline_res_1920_1080_60),
+ {}
+};
+
+static struct kunit_suite drm_pick_cmdline_test_suite = {
+ .name = "drm_pick_cmdline",
+ .init = drm_client_modeset_test_init,
+ .test_cases = drm_pick_cmdline_tests
+};
+
+kunit_test_suite(drm_pick_cmdline_test_suite);
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 13/30] drm/modes: parse_cmdline: Add support for named modes containing dashes
From: Geert Uytterhoeven It is fairly common for named video modes to contain dashes (e.g. "tt-mid" on Atari, "dblntsc-ff" on Amiga). Currently such mode names are not recognized, as the dash is considered to be a separator between mode name and bpp. Fix this by skipping any dashes that are not followed immediately by a digit when looking for the separator. Signed-off-by: Geert Uytterhoeven Reviewed-by: Hans de Goede Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_modes.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index 99809ea09ce3..c0dceff51cac 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -2284,6 +2284,8 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option, /* Try to locate the bpp and refresh specifiers, if any */ bpp_ptr = strnchr(name, options_off, '-'); + while (bpp_ptr && !isdigit(bpp_ptr[1])) + bpp_ptr = strnchr(bpp_ptr + 1, options_off, '-'); if (bpp_ptr) bpp_off = bpp_ptr - name; -- b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 10/30] drm/connector: Add TV standard property
The TV mode property has been around for a while now to select and get the
current TV mode output on an analog TV connector.
Despite that property name being generic, its content isn't and has been
driver-specific which makes it hard to build any generic behaviour on top
of it, both in kernel and user-space.
Let's create a new enum tv norm property, that can contain any of the
analog TV standards currently supported by kernel drivers. Each driver can
then pass in a bitmask of the modes it supports, and the property
creation function will filter out the modes not supported.
We'll then be able to phase out the older tv mode property.
Signed-off-by: Maxime Ripard
---
Changes in v4:
- Add property documentation to kms-properties.csv
- Fix documentation
---
Documentation/gpu/kms-properties.csv | 1 +
drivers/gpu/drm/drm_atomic_uapi.c| 4 +++
drivers/gpu/drm/drm_connector.c | 57 +++-
include/drm/drm_connector.h | 64
include/drm/drm_mode_config.h| 8 +
5 files changed, 133 insertions(+), 1 deletion(-)
diff --git a/Documentation/gpu/kms-properties.csv
b/Documentation/gpu/kms-properties.csv
index 45c12e3e82f4..3498bd5d5856 100644
--- a/Documentation/gpu/kms-properties.csv
+++ b/Documentation/gpu/kms-properties.csv
@@ -91,6 +91,7 @@ omap,Generic,“zorder”,RANGE,"Min=0, Max=3","CRTC, Plane",TBD
qxl,Generic,"“hotplug_mode_update""",RANGE,"Min=0, Max=1",Connector,TBD
radeon,DVI-I,“coherent”,RANGE,"Min=0, Max=1",Connector,TBD
,DAC enable load detect,“load detection”,RANGE,"Min=0, Max=1",Connector,TBD
+,TV Mode,"""TV Mode""",ENUM,"{ ""NTSC"", ""NTSC-443"", ""NTSC-J"", ""PAL"",
""PAL-M"", ""PAL-N"", ""SECAM"" }",Connector,TBD
,legacy TMDS PLL detect,"""tmds_pll""",ENUM,"{ ""driver"", ""bios"" }",-,TBD
,Underscan,"""underscan""",ENUM,"{ ""off"", ""on"", ""auto"" }",Connector,TBD
,,"""underscan hborder""",RANGE,"Min=0, Max=128",Connector,TBD
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c
b/drivers/gpu/drm/drm_atomic_uapi.c
index 7f2b9a07fbdf..d867e7f9f2cd 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -700,6 +700,8 @@ static int drm_atomic_connector_set_property(struct
drm_connector *connector,
state->tv.margins.bottom = val;
} else if (property == config->legacy_tv_mode_property) {
state->tv.legacy_mode = val;
+ } else if (property == config->tv_mode_property) {
+ state->tv.mode = val;
} else if (property == config->tv_brightness_property) {
state->tv.brightness = val;
} else if (property == config->tv_contrast_property) {
@@ -810,6 +812,8 @@ drm_atomic_connector_get_property(struct drm_connector
*connector,
*val = state->tv.margins.bottom;
} else if (property == config->legacy_tv_mode_property) {
*val = state->tv.legacy_mode;
+ } else if (property == config->tv_mode_property) {
+ *val = state->tv.mode;
} else if (property == config->tv_brightness_property) {
*val = state->tv.brightness;
} else if (property == config->tv_contrast_property) {
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 4e4fbc9e0049..8edc347ef664 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -980,6 +980,17 @@ static const struct drm_prop_enum_list
drm_dvi_i_subconnector_enum_list[] = {
DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
drm_dvi_i_subconnector_enum_list)
+static const struct drm_prop_enum_list drm_tv_mode_enum_list[] = {
+ { DRM_MODE_TV_MODE_NTSC, "NTSC" },
+ { DRM_MODE_TV_MODE_NTSC_443, "NTSC-443" },
+ { DRM_MODE_TV_MODE_NTSC_J, "NTSC-J" },
+ { DRM_MODE_TV_MODE_PAL, "PAL" },
+ { DRM_MODE_TV_MODE_PAL_M, "PAL-M" },
+ { DRM_MODE_TV_MODE_PAL_N, "PAL-N" },
+ { DRM_MODE_TV_MODE_SECAM, "SECAM" },
+};
+DRM_ENUM_NAME_FN(drm_get_tv_mode_name, drm_tv_mode_enum_list)
+
static const struct drm_prop_enum_list drm_tv_select_enum_list[] = {
{ DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
{ DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
@@ -1645,6 +1656,10 @@ EXPORT_SYMBOL(drm_mode_create_tv_margin_properties);
* responsible for allocating a list of format names and passing them to
* this routine.
*
+ * NOTE: This functions registers the deprecated "mode" connector
+ * property to select the analog TV mode (ie, NTSC, PAL, etc.). New
+ * drivers must use drm_mode_create_tv_properties() instead.
+ *
* Returns:
* 0 on success or a negative error code on failure.
*/
@@ -1686,7 +1701,6 @@ int drm_mode_create_tv_properties_legacy(struct
drm_device *dev,
if (drm_mode_create_tv_margin_properties(dev))
goto nomem;
-
if (num_modes) {
[Nouveau] [PATCH v4 11/30] drm/modes: Add a function to generate analog display modes
Multiple drivers (meson, vc4, sun4i) define analog TV 525-lines and
625-lines modes in their drivers.
Since those modes are fairly standard, and that we'll need to use them
in more places in the future, it makes sense to move their definition
into the core framework.
However, analog display usually have fairly loose timings requirements,
the only discrete parameters being the total number of lines and pixel
clock frequency. Thus, we created a function that will create a display
mode from the standard, the pixel frequency and the active area.
Signed-off-by: Maxime Ripard
---
Changes in v4:
- Reworded the line length check comment
- Switch to HZ_PER_KHZ in tests
- Use previous timing to fill our mode
- Move the number of lines check earlier
---
drivers/gpu/drm/drm_modes.c| 474 +
drivers/gpu/drm/tests/Makefile | 1 +
drivers/gpu/drm/tests/drm_modes_test.c | 144 ++
include/drm/drm_modes.h| 17 ++
4 files changed, 636 insertions(+)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 304004fb80aa..7cf2fe98d7d2 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -116,6 +116,480 @@ void drm_mode_probed_add(struct drm_connector *connector,
}
EXPORT_SYMBOL(drm_mode_probed_add);
+enum drm_mode_analog {
+ DRM_MODE_ANALOG_NTSC, /* 525 lines, 60Hz */
+ DRM_MODE_ANALOG_PAL, /* 625 lines, 50Hz */
+};
+
+/*
+ * The timings come from:
+ * -
https://web.archive.org/web/20220406232708/http://www.kolumbus.fi/pami1/video/pal_ntsc.html
+ * -
https://web.archive.org/web/20220406124914/http://martin.hinner.info/vga/pal.html
+ * -
https://web.archive.org/web/20220609202433/http://www.batsocks.co.uk/readme/video_timing.htm
+ */
+#define NTSC_LINE_DURATION_NS 63556U
+#define NTSC_LINES_NUMBER 525
+
+#define NTSC_HBLK_DURATION_TYP_NS 10900U
+#define NTSC_HBLK_DURATION_MIN_NS (NTSC_HBLK_DURATION_TYP_NS - 200)
+#define NTSC_HBLK_DURATION_MAX_NS (NTSC_HBLK_DURATION_TYP_NS + 200)
+
+#define NTSC_HACT_DURATION_TYP_NS (NTSC_LINE_DURATION_NS -
NTSC_HBLK_DURATION_TYP_NS)
+#define NTSC_HACT_DURATION_MIN_NS (NTSC_LINE_DURATION_NS -
NTSC_HBLK_DURATION_MAX_NS)
+#define NTSC_HACT_DURATION_MAX_NS (NTSC_LINE_DURATION_NS -
NTSC_HBLK_DURATION_MIN_NS)
+
+#define NTSC_HFP_DURATION_TYP_NS 1500
+#define NTSC_HFP_DURATION_MIN_NS 1270
+#define NTSC_HFP_DURATION_MAX_NS 2220
+
+#define NTSC_HSLEN_DURATION_TYP_NS 4700
+#define NTSC_HSLEN_DURATION_MIN_NS (NTSC_HSLEN_DURATION_TYP_NS - 100)
+#define NTSC_HSLEN_DURATION_MAX_NS (NTSC_HSLEN_DURATION_TYP_NS + 100)
+
+#define NTSC_HBP_DURATION_TYP_NS 4700
+
+/*
+ * I couldn't find the actual tolerance for the back porch, so let's
+ * just reuse the sync length ones.
+ */
+#define NTSC_HBP_DURATION_MIN_NS (NTSC_HBP_DURATION_TYP_NS - 100)
+#define NTSC_HBP_DURATION_MAX_NS (NTSC_HBP_DURATION_TYP_NS + 100)
+
+#define PAL_LINE_DURATION_NS 64000U
+#define PAL_LINES_NUMBER 625
+
+#define PAL_HACT_DURATION_TYP_NS 51950U
+#define PAL_HACT_DURATION_MIN_NS (PAL_HACT_DURATION_TYP_NS - 100)
+#define PAL_HACT_DURATION_MAX_NS (PAL_HACT_DURATION_TYP_NS + 400)
+
+#define PAL_HBLK_DURATION_TYP_NS (PAL_LINE_DURATION_NS -
PAL_HACT_DURATION_TYP_NS)
+#define PAL_HBLK_DURATION_MIN_NS (PAL_LINE_DURATION_NS -
PAL_HACT_DURATION_MAX_NS)
+#define PAL_HBLK_DURATION_MAX_NS (PAL_LINE_DURATION_NS -
PAL_HACT_DURATION_MIN_NS)
+
+#define PAL_HFP_DURATION_TYP_NS1650
+#define PAL_HFP_DURATION_MIN_NS(PAL_HFP_DURATION_TYP_NS - 100)
+#define PAL_HFP_DURATION_MAX_NS(PAL_HFP_DURATION_TYP_NS + 400)
+
+#define PAL_HSLEN_DURATION_TYP_NS 4700
+#define PAL_HSLEN_DURATION_MIN_NS (PAL_HSLEN_DURATION_TYP_NS - 200)
+#define PAL_HSLEN_DURATION_MAX_NS (PAL_HSLEN_DURATION_TYP_NS + 200)
+
+#define PAL_HBP_DURATION_TYP_NS5700
+#define PAL_HBP_DURATION_MIN_NS(PAL_HBP_DURATION_TYP_NS - 200)
+#define PAL_HBP_DURATION_MAX_NS(PAL_HBP_DURATION_TYP_NS + 200)
+
+struct analog_param_field {
+ unsigned int even, odd;
+};
+
+#define PARAM_FIELD(_odd, _even) \
+ { .even = _even, .odd = _odd }
+
+struct analog_param_range {
+ unsigned intmin, typ, max;
+};
+
+#define PARAM_RANGE(_min, _typ, _max) \
+ { .min = _min, .typ = _typ, .max = _max }
+
+struct analog_parameters {
+ unsigned intnum_lines;
+ unsigned intline_duration_ns;
+
+ struct analog_param_range hact_ns;
+ struct analog_param_range hfp_ns;
+ struct analog_param_range hslen_ns;
+ struct analog_param_range hbp_ns;
+ struct analog_param_range hblk_ns;
+
+ unsigned intbt601_hfp;
+
+ struct analog_param_field
[Nouveau] [PATCH v4 08/30] drm/connector: Only register TV mode property if present
The drm_create_tv_properties() will create the TV mode property
unconditionally.
However, since we'll gradually phase it out, let's register it only if we
have a list passed as an argument. This will make the transition easier.
Acked-by: Noralf Trønnes
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_connector.c | 19 +++
1 file changed, 11 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index ede6025638d7..17a5913cefe3 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1686,15 +1686,18 @@ int drm_mode_create_tv_properties(struct drm_device
*dev,
if (drm_mode_create_tv_margin_properties(dev))
goto nomem;
- dev->mode_config.legacy_tv_mode_property =
- drm_property_create(dev, DRM_MODE_PROP_ENUM,
- "mode", num_modes);
- if (!dev->mode_config.legacy_tv_mode_property)
- goto nomem;
- for (i = 0; i < num_modes; i++)
- drm_property_add_enum(dev->mode_config.legacy_tv_mode_property,
- i, modes[i]);
+ if (num_modes) {
+ dev->mode_config.legacy_tv_mode_property =
+ drm_property_create(dev, DRM_MODE_PROP_ENUM,
+ "mode", num_modes);
+ if (!dev->mode_config.legacy_tv_mode_property)
+ goto nomem;
+
+ for (i = 0; i < num_modes; i++)
+
drm_property_add_enum(dev->mode_config.legacy_tv_mode_property,
+ i, modes[i]);
+ }
dev->mode_config.tv_brightness_property =
drm_property_create_range(dev, 0, "brightness", 0, 100);
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 09/30] drm/connector: Rename drm_mode_create_tv_properties
drm_mode_create_tv_properties(), among other things, will create the
"mode" property that stores the analog TV mode that connector is
supposed to output.
However, that property is getting deprecated, so let's rename that
function to mention it's deprecated. We'll introduce a new variant of
that function creating the property superseeding it in a later patch.
Reviewed-by: Lyude Paul # nouveau
Reviewed-by: Noralf Trønnes
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_connector.c | 12 ++--
drivers/gpu/drm/gud/gud_connector.c | 4 ++--
drivers/gpu/drm/i2c/ch7006_drv.c | 2 +-
drivers/gpu/drm/i915/display/intel_tv.c | 2 +-
drivers/gpu/drm/nouveau/dispnv04/tvnv17.c | 2 +-
drivers/gpu/drm/vc4/vc4_vec.c | 5 +++--
include/drm/drm_connector.h | 6 +++---
7 files changed, 17 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 17a5913cefe3..4e4fbc9e0049 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1600,7 +1600,7 @@ EXPORT_SYMBOL(drm_connector_attach_tv_margin_properties);
* Called by a driver's HDMI connector initialization routine, this function
* creates the TV margin properties for a given device. No need to call this
* function for an SDTV connector, it's already called from
- * drm_mode_create_tv_properties().
+ * drm_mode_create_tv_properties_legacy().
*
* Returns:
* 0 on success or a negative error code on failure.
@@ -1635,7 +1635,7 @@ int drm_mode_create_tv_margin_properties(struct
drm_device *dev)
EXPORT_SYMBOL(drm_mode_create_tv_margin_properties);
/**
- * drm_mode_create_tv_properties - create TV specific connector properties
+ * drm_mode_create_tv_properties_legacy - create TV specific connector
properties
* @dev: DRM device
* @num_modes: number of different TV formats (modes) supported
* @modes: array of pointers to strings containing name of each format
@@ -1648,9 +1648,9 @@ EXPORT_SYMBOL(drm_mode_create_tv_margin_properties);
* Returns:
* 0 on success or a negative error code on failure.
*/
-int drm_mode_create_tv_properties(struct drm_device *dev,
- unsigned int num_modes,
- const char * const modes[])
+int drm_mode_create_tv_properties_legacy(struct drm_device *dev,
+unsigned int num_modes,
+const char * const modes[])
{
struct drm_property *tv_selector;
struct drm_property *tv_subconnector;
@@ -1733,7 +1733,7 @@ int drm_mode_create_tv_properties(struct drm_device *dev,
nomem:
return -ENOMEM;
}
-EXPORT_SYMBOL(drm_mode_create_tv_properties);
+EXPORT_SYMBOL(drm_mode_create_tv_properties_legacy);
/**
* drm_mode_create_scaling_mode_property - create scaling mode property
diff --git a/drivers/gpu/drm/gud/gud_connector.c
b/drivers/gpu/drm/gud/gud_connector.c
index 86e992b2108b..034e78360d4f 100644
--- a/drivers/gpu/drm/gud/gud_connector.c
+++ b/drivers/gpu/drm/gud/gud_connector.c
@@ -400,7 +400,7 @@ static int gud_connector_add_tv_mode(struct gud_device
*gdrm, struct drm_connect
for (i = 0; i < num_modes; i++)
modes[i] = [i * GUD_CONNECTOR_TV_MODE_NAME_LEN];
- ret = drm_mode_create_tv_properties(connector->dev, num_modes, modes);
+ ret = drm_mode_create_tv_properties_legacy(connector->dev, num_modes,
modes);
free:
kfree(buf);
if (ret < 0)
@@ -539,7 +539,7 @@ static int gud_connector_add_properties(struct gud_device
*gdrm, struct gud_conn
fallthrough;
case GUD_PROPERTY_TV_HUE:
/* This is a no-op if already added. */
- ret = drm_mode_create_tv_properties(drm, 0, NULL);
+ ret = drm_mode_create_tv_properties_legacy(drm, 0,
NULL);
if (ret)
goto out;
break;
diff --git a/drivers/gpu/drm/i2c/ch7006_drv.c b/drivers/gpu/drm/i2c/ch7006_drv.c
index d29b63fd6178..506f6f932518 100644
--- a/drivers/gpu/drm/i2c/ch7006_drv.c
+++ b/drivers/gpu/drm/i2c/ch7006_drv.c
@@ -250,7 +250,7 @@ static int ch7006_encoder_create_resources(struct
drm_encoder *encoder,
struct drm_device *dev = encoder->dev;
struct drm_mode_config *conf = >mode_config;
- drm_mode_create_tv_properties(dev, NUM_TV_NORMS, ch7006_tv_norm_names);
+ drm_mode_create_tv_properties_legacy(dev, NUM_TV_NORMS,
ch7006_tv_norm_names);
priv->scale_property = drm_property_create_range(dev, 0, "scale", 0, 2);
if (!priv->scale_property)
diff --git a/drivers/gpu/drm/i915/display/intel_tv.c
b/drivers/gpu/drm/i915/display/intel_tv.c
index abaf9ded942d..5e88da8185ee 100644
--- a/drivers/gpu/drm/i915/display/intel_tv.c
+++ b/drivers/gpu/drm/i915/display/intel_tv.c
@@ -1984,7 +1984,7 @@
[Nouveau] [PATCH v4 05/30] drm/connector: Rename subconnector state variable
There is two TV subconnector related properties registered by
drm_mode_create_tv_properties(): subconnector and select subconnector.
While the select subconnector property is stored in the kernel by the
drm_tv_connector_state structure, the subconnector property isn't stored
anywhere.
Worse, the select subconnector property is stored in a field called
subconnector, creating some ambiguity about which property content we're
accessing.
Let's rename that field to one called select_subconnector to make it move
obvious what it's about.
Acked-by: Thomas Zimmermann
Reviewed-by: Noralf Trønnes
Signed-off-by: Maxime Ripard
---
Changes in v4:
- Added the documentation name update
---
drivers/gpu/drm/drm_atomic_uapi.c | 4 ++--
include/drm/drm_connector.h | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c
b/drivers/gpu/drm/drm_atomic_uapi.c
index 79730fa1dd8e..c74c78a28171 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -687,7 +687,7 @@ static int drm_atomic_connector_set_property(struct
drm_connector *connector,
*/
return -EINVAL;
} else if (property == config->tv_select_subconnector_property) {
- state->tv.subconnector = val;
+ state->tv.select_subconnector = val;
} else if (property == config->tv_left_margin_property) {
state->tv.margins.left = val;
} else if (property == config->tv_right_margin_property) {
@@ -795,7 +795,7 @@ drm_atomic_connector_get_property(struct drm_connector
*connector,
else
*val = connector->dpms;
} else if (property == config->tv_select_subconnector_property) {
- *val = state->tv.subconnector;
+ *val = state->tv.select_subconnector;
} else if (property == config->tv_left_margin_property) {
*val = state->tv.margins.left;
} else if (property == config->tv_right_margin_property) {
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 248206bbd975..60b5662dec7c 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -692,7 +692,7 @@ struct drm_connector_tv_margins {
/**
* struct drm_tv_connector_state - TV connector related states
- * @subconnector: selected subconnector
+ * @select_subconnector: selected subconnector
* @margins: TV margins
* @mode: TV mode
* @brightness: brightness in percent
@@ -703,7 +703,7 @@ struct drm_connector_tv_margins {
* @hue: hue in percent
*/
struct drm_tv_connector_state {
- enum drm_mode_subconnector subconnector;
+ enum drm_mode_subconnector select_subconnector;
struct drm_connector_tv_margins margins;
unsigned int mode;
unsigned int brightness;
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 07/30] drm/connector: Rename legacy TV property
The current tv_mode has driver-specific values that don't allow to
easily share code using it, either at the userspace or kernel level.
Since we're going to introduce a new, generic, property that fit the
same purpose, let's rename this one to legacy_tv_mode to make it
obvious we should move away from it.
Acked-by: Thomas Zimmermann
Reviewed-by: Lyude Paul # nouveau
Reviewed-by: Noralf Trønnes
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_atomic_uapi.c | 8
drivers/gpu/drm/drm_connector.c | 6 +++---
drivers/gpu/drm/gud/gud_connector.c | 6 +++---
drivers/gpu/drm/i2c/ch7006_drv.c | 4 ++--
drivers/gpu/drm/i915/display/intel_tv.c | 3 ++-
drivers/gpu/drm/nouveau/dispnv04/tvnv17.c | 4 ++--
drivers/gpu/drm/vc4/vc4_vec.c | 8
include/drm/drm_connector.h | 4 ++--
include/drm/drm_mode_config.h | 6 --
9 files changed, 26 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c
b/drivers/gpu/drm/drm_atomic_uapi.c
index c06d0639d552..7f2b9a07fbdf 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -698,8 +698,8 @@ static int drm_atomic_connector_set_property(struct
drm_connector *connector,
state->tv.margins.top = val;
} else if (property == config->tv_bottom_margin_property) {
state->tv.margins.bottom = val;
- } else if (property == config->tv_mode_property) {
- state->tv.mode = val;
+ } else if (property == config->legacy_tv_mode_property) {
+ state->tv.legacy_mode = val;
} else if (property == config->tv_brightness_property) {
state->tv.brightness = val;
} else if (property == config->tv_contrast_property) {
@@ -808,8 +808,8 @@ drm_atomic_connector_get_property(struct drm_connector
*connector,
*val = state->tv.margins.top;
} else if (property == config->tv_bottom_margin_property) {
*val = state->tv.margins.bottom;
- } else if (property == config->tv_mode_property) {
- *val = state->tv.mode;
+ } else if (property == config->legacy_tv_mode_property) {
+ *val = state->tv.legacy_mode;
} else if (property == config->tv_brightness_property) {
*val = state->tv.brightness;
} else if (property == config->tv_contrast_property) {
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index e3142c8142b3..ede6025638d7 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1686,14 +1686,14 @@ int drm_mode_create_tv_properties(struct drm_device
*dev,
if (drm_mode_create_tv_margin_properties(dev))
goto nomem;
- dev->mode_config.tv_mode_property =
+ dev->mode_config.legacy_tv_mode_property =
drm_property_create(dev, DRM_MODE_PROP_ENUM,
"mode", num_modes);
- if (!dev->mode_config.tv_mode_property)
+ if (!dev->mode_config.legacy_tv_mode_property)
goto nomem;
for (i = 0; i < num_modes; i++)
- drm_property_add_enum(dev->mode_config.tv_mode_property,
+ drm_property_add_enum(dev->mode_config.legacy_tv_mode_property,
i, modes[i]);
dev->mode_config.tv_brightness_property =
diff --git a/drivers/gpu/drm/gud/gud_connector.c
b/drivers/gpu/drm/gud/gud_connector.c
index fa636206f232..86e992b2108b 100644
--- a/drivers/gpu/drm/gud/gud_connector.c
+++ b/drivers/gpu/drm/gud/gud_connector.c
@@ -303,7 +303,7 @@ static int gud_connector_atomic_check(struct drm_connector
*connector,
old_state->tv.margins.right != new_state->tv.margins.right ||
old_state->tv.margins.top != new_state->tv.margins.top ||
old_state->tv.margins.bottom != new_state->tv.margins.bottom ||
- old_state->tv.mode != new_state->tv.mode ||
+ old_state->tv.legacy_mode != new_state->tv.legacy_mode ||
old_state->tv.brightness != new_state->tv.brightness ||
old_state->tv.contrast != new_state->tv.contrast ||
old_state->tv.flicker_reduction != new_state->tv.flicker_reduction
||
@@ -424,7 +424,7 @@ gud_connector_property_lookup(struct drm_connector
*connector, u16 prop)
case GUD_PROPERTY_TV_BOTTOM_MARGIN:
return config->tv_bottom_margin_property;
case GUD_PROPERTY_TV_MODE:
- return config->tv_mode_property;
+ return config->legacy_tv_mode_property;
case GUD_PROPERTY_TV_BRIGHTNESS:
return config->tv_brightness_property;
case GUD_PROPERTY_TV_CONTRAST:
@@ -454,7 +454,7 @@ static unsigned int *gud_connector_tv_state_val(u16 prop,
struct drm_tv_connecto
case GUD_PROPERTY_TV_BOTTOM_MARGIN:
return >margins.bottom;
case
[Nouveau] [PATCH v4 06/30] drm/atomic: Add TV subconnector property to get/set_property
The subconnector property was created by drm_mode_create_tv_properties(),
but wasn't exposed to the userspace through the generic
atomic_get/set_property implementation, and wasn't stored in any generic
state structure.
Let's solve this.
Reviewed-by: Noralf Trønnes
Signed-off-by: Maxime Ripard
---
drivers/gpu/drm/drm_atomic_uapi.c | 4
include/drm/drm_connector.h | 2 ++
2 files changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c
b/drivers/gpu/drm/drm_atomic_uapi.c
index c74c78a28171..c06d0639d552 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -688,6 +688,8 @@ static int drm_atomic_connector_set_property(struct
drm_connector *connector,
return -EINVAL;
} else if (property == config->tv_select_subconnector_property) {
state->tv.select_subconnector = val;
+ } else if (property == config->tv_subconnector_property) {
+ state->tv.subconnector = val;
} else if (property == config->tv_left_margin_property) {
state->tv.margins.left = val;
} else if (property == config->tv_right_margin_property) {
@@ -796,6 +798,8 @@ drm_atomic_connector_get_property(struct drm_connector
*connector,
*val = connector->dpms;
} else if (property == config->tv_select_subconnector_property) {
*val = state->tv.select_subconnector;
+ } else if (property == config->tv_subconnector_property) {
+ *val = state->tv.subconnector;
} else if (property == config->tv_left_margin_property) {
*val = state->tv.margins.left;
} else if (property == config->tv_right_margin_property) {
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 60b5662dec7c..1d5e3cccb9e3 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -693,6 +693,7 @@ struct drm_connector_tv_margins {
/**
* struct drm_tv_connector_state - TV connector related states
* @select_subconnector: selected subconnector
+ * @subconnector: detected subconnector
* @margins: TV margins
* @mode: TV mode
* @brightness: brightness in percent
@@ -704,6 +705,7 @@ struct drm_connector_tv_margins {
*/
struct drm_tv_connector_state {
enum drm_mode_subconnector select_subconnector;
+ enum drm_mode_subconnector subconnector;
struct drm_connector_tv_margins margins;
unsigned int mode;
unsigned int brightness;
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 04/30] drm/atomic-helper: Rename drm_atomic_helper_connector_tv_reset to avoid ambiguity
We currently have two sets of TV properties.
The first one is there to deal with analog TV properties, creating
properties such as the TV mode, subconnectors, saturation, hue and so on.
It's created by calling the drm_mode_create_tv_properties() function.
The second one is there to deal with properties that might be useful on a
TV, creating the overscan margins for example. It's created by calling the
drm_mode_create_tv_margin_properties().
However, we also have a drm_atomic_helper_connector_tv_reset() function
that will reset the TV margin properties to their default values, and thus
is supposed to be called for the latter set. This creates an ambiguity due
to the inconsistent naming.
We can thus rename the drm_atomic_helper_connector_tv_reset() function to
drm_atomic_helper_connector_tv_margins_reset() to remove that ambiguity
and hopefully make it more obvious.
Acked-by: Thomas Zimmermann
Reviewed-by: Noralf Trønnes
Signed-off-by: Maxime Ripard
---
Changes in v4:
- Removed the unrelated subconnector documentation name change
---
drivers/gpu/drm/drm_atomic_state_helper.c | 6 +++---
drivers/gpu/drm/gud/gud_connector.c | 2 +-
drivers/gpu/drm/vc4/vc4_hdmi.c| 2 +-
include/drm/drm_atomic_state_helper.h | 2 +-
4 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c
b/drivers/gpu/drm/drm_atomic_state_helper.c
index bf31b9d92094..dfb57217253b 100644
--- a/drivers/gpu/drm/drm_atomic_state_helper.c
+++ b/drivers/gpu/drm/drm_atomic_state_helper.c
@@ -464,12 +464,12 @@ void drm_atomic_helper_connector_reset(struct
drm_connector *connector)
EXPORT_SYMBOL(drm_atomic_helper_connector_reset);
/**
- * drm_atomic_helper_connector_tv_reset - Resets TV connector properties
+ * drm_atomic_helper_connector_tv_margins_reset - Resets TV connector
properties
* @connector: DRM connector
*
* Resets the TV-related properties attached to a connector.
*/
-void drm_atomic_helper_connector_tv_reset(struct drm_connector *connector)
+void drm_atomic_helper_connector_tv_margins_reset(struct drm_connector
*connector)
{
struct drm_cmdline_mode *cmdline = >cmdline_mode;
struct drm_connector_state *state = connector->state;
@@ -479,7 +479,7 @@ void drm_atomic_helper_connector_tv_reset(struct
drm_connector *connector)
state->tv.margins.top = cmdline->tv_margins.top;
state->tv.margins.bottom = cmdline->tv_margins.bottom;
}
-EXPORT_SYMBOL(drm_atomic_helper_connector_tv_reset);
+EXPORT_SYMBOL(drm_atomic_helper_connector_tv_margins_reset);
/**
* __drm_atomic_helper_connector_duplicate_state - copy atomic connector state
diff --git a/drivers/gpu/drm/gud/gud_connector.c
b/drivers/gpu/drm/gud/gud_connector.c
index d0addd478815..fa636206f232 100644
--- a/drivers/gpu/drm/gud/gud_connector.c
+++ b/drivers/gpu/drm/gud/gud_connector.c
@@ -355,7 +355,7 @@ static void gud_connector_reset(struct drm_connector
*connector)
drm_atomic_helper_connector_reset(connector);
connector->state->tv = gconn->initial_tv_state;
/* Set margins from command line */
- drm_atomic_helper_connector_tv_reset(connector);
+ drm_atomic_helper_connector_tv_margins_reset(connector);
if (gconn->initial_brightness >= 0)
connector->state->tv.brightness = gconn->initial_brightness;
}
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 64f9feabf43e..99908137dbe7 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -542,7 +542,7 @@ static void vc4_hdmi_connector_reset(struct drm_connector
*connector)
new_state->base.max_bpc = 8;
new_state->base.max_requested_bpc = 8;
new_state->output_format = VC4_HDMI_OUTPUT_RGB;
- drm_atomic_helper_connector_tv_reset(connector);
+ drm_atomic_helper_connector_tv_margins_reset(connector);
}
static struct drm_connector_state *
diff --git a/include/drm/drm_atomic_state_helper.h
b/include/drm/drm_atomic_state_helper.h
index 3f8f1d627f7c..192766656b88 100644
--- a/include/drm/drm_atomic_state_helper.h
+++ b/include/drm/drm_atomic_state_helper.h
@@ -70,7 +70,7 @@ void __drm_atomic_helper_connector_state_reset(struct
drm_connector_state *conn_
void __drm_atomic_helper_connector_reset(struct drm_connector *connector,
struct drm_connector_state
*conn_state);
void drm_atomic_helper_connector_reset(struct drm_connector *connector);
-void drm_atomic_helper_connector_tv_reset(struct drm_connector *connector);
+void drm_atomic_helper_connector_tv_margins_reset(struct drm_connector
*connector);
void
__drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector,
struct drm_connector_state *state);
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 02/30] drm/tests: Order Kunit tests in Makefile
Since we've recently added a ton of tests, the list starts to be a bit of a mess and creates unneeded conflicts. Let's order it alphabetically. Acked-by: Thomas Zimmermann Reviewed-by: Noralf Trønnes Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tests/Makefile | 14 +++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/tests/Makefile b/drivers/gpu/drm/tests/Makefile index 91b70f7d2769..2d9f49b62ecb 100644 --- a/drivers/gpu/drm/tests/Makefile +++ b/drivers/gpu/drm/tests/Makefile @@ -1,5 +1,13 @@ # SPDX-License-Identifier: GPL-2.0 -obj-$(CONFIG_DRM_KUNIT_TEST) += drm_format_helper_test.o drm_damage_helper_test.o \ - drm_cmdline_parser_test.o drm_rect_test.o drm_format_test.o drm_plane_helper_test.o \ - drm_dp_mst_helper_test.o drm_framebuffer_test.o drm_buddy_test.o drm_mm_test.o +obj-$(CONFIG_DRM_KUNIT_TEST) += \ + drm_buddy_test.o \ + drm_cmdline_parser_test.o \ + drm_damage_helper_test.o \ + drm_dp_mst_helper_test.o \ + drm_format_helper_test.o \ + drm_format_test.o \ + drm_framebuffer_test.o \ + drm_mm_test.o \ + drm_plane_helper_test.o \ + drm_rect_test.o -- b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 03/30] drm/tests: Add Kunit Helpers
As the number of kunit tests in KMS grows further, we start to have
multiple test suites that, for example, need to register a mock DRM
driver to interact with the KMS function they are supposed to test.
Let's add a file meant to provide those kind of helpers to avoid
duplication.
Signed-off-by: Maxime Ripard
---
Changes in v4:
- Simplified the DRM device cleanup patch using devm_drm_dev_alloc()
---
drivers/gpu/drm/tests/Makefile| 1 +
drivers/gpu/drm/tests/drm_kunit_helpers.c | 61 +++
drivers/gpu/drm/tests/drm_kunit_helpers.h | 9 +
3 files changed, 71 insertions(+)
diff --git a/drivers/gpu/drm/tests/Makefile b/drivers/gpu/drm/tests/Makefile
index 2d9f49b62ecb..b29ef1085cad 100644
--- a/drivers/gpu/drm/tests/Makefile
+++ b/drivers/gpu/drm/tests/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_DRM_KUNIT_TEST) += \
drm_format_helper_test.o \
drm_format_test.o \
drm_framebuffer_test.o \
+ drm_kunit_helpers.o \
drm_mm_test.o \
drm_plane_helper_test.o \
drm_rect_test.o
diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.c
b/drivers/gpu/drm/tests/drm_kunit_helpers.c
new file mode 100644
index ..3524d6a1fa9a
--- /dev/null
+++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c
@@ -0,0 +1,61 @@
+#include
+#include
+
+#include
+
+#include
+
+struct kunit_dev {
+ struct drm_device base;
+};
+
+static const struct drm_mode_config_funcs drm_mode_config_funcs = {
+};
+
+static const struct drm_driver drm_mode_driver = {
+};
+
+static int dev_init(struct kunit_resource *res, void *ptr)
+{
+ char *name = ptr;
+ struct device *dev;
+
+ dev = root_device_register(name);
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+
+ res->data = dev;
+ return 0;
+}
+
+static void dev_free(struct kunit_resource *res)
+{
+ struct device *dev = res->data;
+
+ root_device_unregister(dev);
+}
+
+struct drm_device *drm_kunit_device_init(struct kunit *test, char *name)
+{
+ struct kunit_dev *kdev;
+ struct drm_device *drm;
+ struct device *dev;
+ int ret;
+
+ dev = kunit_alloc_resource(test, dev_init, dev_free, GFP_KERNEL, name);
+ if (!dev)
+ return ERR_PTR(-ENOMEM);
+
+ kdev = devm_drm_dev_alloc(dev, _mode_driver, struct kunit_dev,
base);
+ if (IS_ERR(kdev))
+ return ERR_CAST(kdev);
+
+ drm = >base;
+ drm->mode_config.funcs = _mode_config_funcs;
+
+ ret = drmm_mode_config_init(drm);
+ if (ret)
+ return ERR_PTR(ret);
+
+ return drm;
+}
diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.h
b/drivers/gpu/drm/tests/drm_kunit_helpers.h
new file mode 100644
index ..a9354f9bda4e
--- /dev/null
+++ b/drivers/gpu/drm/tests/drm_kunit_helpers.h
@@ -0,0 +1,9 @@
+#ifndef DRM_KUNIT_HELPERS_H_
+#define DRM_KUNIT_HELPERS_H_
+
+struct drm_device;
+struct kunit;
+
+struct drm_device *drm_kunit_device_init(struct kunit *test, char *name);
+
+#endif // DRM_KUNIT_HELPERS_H_
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 01/30] drm/docs: Remove unused TV Standard property
That property is not used or exposed by any driver in the kernel. Remove
it from the documentation.
Signed-off-by: Maxime Ripard
---
Changes in v4:
- New patch
---
Documentation/gpu/kms-properties.csv | 1 -
1 file changed, 1 deletion(-)
diff --git a/Documentation/gpu/kms-properties.csv
b/Documentation/gpu/kms-properties.csv
index 07ed22ea3bd6..45c12e3e82f4 100644
--- a/Documentation/gpu/kms-properties.csv
+++ b/Documentation/gpu/kms-properties.csv
@@ -91,7 +91,6 @@ omap,Generic,“zorder”,RANGE,"Min=0, Max=3","CRTC, Plane",TBD
qxl,Generic,"“hotplug_mode_update""",RANGE,"Min=0, Max=1",Connector,TBD
radeon,DVI-I,“coherent”,RANGE,"Min=0, Max=1",Connector,TBD
,DAC enable load detect,“load detection”,RANGE,"Min=0, Max=1",Connector,TBD
-,TV Standard,"""tv standard""",ENUM,"{ ""ntsc"", ""pal"", ""pal-m"",
""pal-60"", ""ntsc-j"" , ""scart-pal"", ""pal-cn"", ""secam"" }",Connector,TBD
,legacy TMDS PLL detect,"""tmds_pll""",ENUM,"{ ""driver"", ""bios"" }",-,TBD
,Underscan,"""underscan""",ENUM,"{ ""off"", ""on"", ""auto"" }",Connector,TBD
,,"""underscan hborder""",RANGE,"Min=0, Max=128",Connector,TBD
--
b4 0.11.0-dev-7da52
[Nouveau] [PATCH v4 00/30] drm: Analog TV Improvements
Hi, Here's a series aiming at improving the command line named modes support, and more importantly how we deal with all the analog TV variants. The named modes support were initially introduced to allow to specify the analog TV mode to be used. However, this was causing multiple issues: * The mode name parsed on the command line was passed directly to the driver, which had to figure out which mode it was suppose to match; * Figuring that out wasn't really easy, since the video= argument or what the userspace might not even have a name in the first place, but instead could have passed a mode with the same timings; * The fallback to matching on the timings was mostly working as long as we were supporting one 525 lines (most likely NSTC) and one 625 lines (PAL), but couldn't differentiate between two modes with the same timings (NTSC vs PAL-M vs NSTC-J for example); * There was also some overlap with the tv mode property registered by drm_mode_create_tv_properties(), but named modes weren't interacting with that property at all. * Even though that property was generic, its possible values were specific to each drivers, which made some generic support difficult. Thus, I chose to tackle in multiple steps: * A new TV mode property was introduced, with generic values, each driver reporting through a bitmask what standard it supports to the userspace; * This option was added to the command line parsing code to be able to specify it on the kernel command line, and new atomic_check and reset helpers were created to integrate properly into atomic KMS; * The named mode parsing code is now creating a proper display mode for the given named mode, and the TV standard will thus be part of the connector state; * Two drivers were converted and tested for now (vc4 and sun4i), with some backward compatibility code to translate the old TV mode to the new TV mode; Unit tests were created along the way. One can switch from NTSC to PAL now using (on vc4) modetest -M vc4 -s 53:720x480i -w 53:'TV mode':1 # NTSC modetest -M vc4 -s 53:720x576i -w 53:'TV mode':4 # PAL Let me know what you think, Maxime To: David Airlie To: Daniel Vetter To: Maarten Lankhorst To: Maxime Ripard To: Thomas Zimmermann To: Emma Anholt To: Jani Nikula To: Joonas Lahtinen To: Rodrigo Vivi To: Tvrtko Ursulin To: Ben Skeggs To: Karol Herbst To: Lyude Paul To: Chen-Yu Tsai To: Jernej Skrabec To: Samuel Holland Cc: Geert Uytterhoeven Cc: Mateusz Kwiatkowski Cc: "Noralf Trønnes" Cc: Dave Stevenson Cc: Dom Cobley Cc: Phil Elwell Cc: Cc: linux-ker...@vger.kernel.org Cc: intel-...@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Cc: linux-arm-ker...@lists.infradead.org Cc: linux-su...@lists.linux.dev Cc: Hans de Goede Signed-off-by: Maxime Ripard --- Changes in v4: - Removed the unused TV Standard property documentation - Added the TV Mode property documentation to kms-properties.csv - Fixed the documentation of drm_mode_create_tv_properties() - Removed DRM_MODE_TV_MODE_NONE - Reworded the line length check comment in drm_mode_analog_tv tests - Switched to HZ_PER_KHZ in drm_mode_analog_tv tests - Reworked drm_mode_analog_tv to fill our mode using the previously computed timings - Added the command-line option documentation to modedb.rst - Improved the Kunit helpers cleanup - Moved the subconnector documentation renaming to the proper patch - Added the various review tags - Removed the count variable in vc4_vec_connector_get_modes - Rebased on drm-misc-next-2022-09-23 and fixed a merge conflict - Folded all the named mode parsing improvements in a single patch - Link to v3: https://lore.kernel.org/r/20220728-rpi-analog-tv-properties-v2-0-f733a0ed9...@cerno.tech Changes in v3: - Applied some of the fixes to vc4 and sun4i - Renamed the old TV mode property to legacy_mode - Fixed a bunch of bisection errors - Removed most of the redundant TV modes - Added a new None TV mode to not fall back on NTSC by mistake - Fixed the mode generation function to match better what is expected - Added some logging to the mode generation function - Split the improvements to the named mode parsing logic into separate patches - Added more checks to the TV atomic_check helper - Link to v2: https://lore.kernel.org/dri-devel/20220728-rpi-analog-tv-properties-v2-0-459522d65...@cerno.tech/ Changes in v2: - Kept the older TV mode property as legacy so we can keep the old drivers functional - Renamed the tv_norm property to tv_mode - Added a function to create PAL and NTSC compatible display modes - Added some helpers to instantiate a mock DRM device in Kunit - More Kunit tests - Removed the HD analog TV modes - Renamed some of the tests - Renamed some of the named modes - Fixed typos in commit logs - Added the various tags - Link to v1: https://lore.kernel.org/dri-devel/20220728-rpi-analog-tv-properties-v1-0-3d53ae722...@cerno.tech/ --- Geert
[Nouveau] Information about XDC 2022 - next week!
Hi folks, We are excited to welcome you in person to the 2022 X.Org Developers Conference, held in conjunction with WineConf and FOSS XR conference. The conference will start officially on Tuesday morning, October 4th. The program is here: https://indico.freedesktop.org/event/2/timetable/#all.detailed The official events start at 8:30 am, but we will have coffee and pastries available from 7:30 on Tuesday and 8 on Wednesday and Thursday. We expect everyone attending to be vaccinated and to be respectful of people that are trying to avoid catching COVID. Masks are mandatory, except when presenting or eating. A small number of us will gather informally at Brit’s Pub, starting at around 4:00 pm on Monday, October 3rd. We’ll try to have a table with some sort of a sign, and folks can connect, have a drink, and then perhaps group up to explore alternate food. Note that if the weather is nice, we may be up on the roof, so explore far to find us. We will be on the Minneapolis campus of St. Thomas, which is a mildly confusing campus. We have given instructions and a picture to guide you here: https://indico.freedesktop.org/event/2/page/10-attending-xdc-wineconf-foss-xr We are working on the remote experience, and expect to have streaming of all events available. The above page will have those details just as soon as they are finalized. We have a page of instructions for folks that will be presenting: https://indico.freedesktop.org/event/2/page/18-speaker-instructions We are also excited to announce the happy hour taking place on Wednesday, from 6:00 pm until 8:00 pm. The hope is that all three projects can mingle and socialize and enjoy the return of in person meetings. Also, this year we plan to adopt the Wine strategy of using a deliberate Matrix chat room just for the conference. Matrix has a variety of apps, and Element, the default one is easy to configure on many devices, including mobile phones. The link to that channel is here: https://matrix.to/#/#xdc-wineconf-fossxr-2022:matrix.org We find the chat channel a good place to learn what restaurants and bars are chosen, and just a good way to track the social aspects of the conference. We look forward to seeing you next week! Cheers, Jeremy
Re: [Nouveau] [PATCH v2 8/8] hmm-tests: Add test for migrate_device_range()
Andrew Morton writes:
> On Wed, 28 Sep 2022 22:01:22 +1000 Alistair Popple wrote:
>
>> @@ -1401,22 +1494,7 @@ static int dmirror_device_init(struct dmirror_device
>> *mdevice, int id)
>>
>> static void dmirror_device_remove(struct dmirror_device *mdevice)
>> {
>> -unsigned int i;
>> -
>> -if (mdevice->devmem_chunks) {
>> -for (i = 0; i < mdevice->devmem_count; i++) {
>> -struct dmirror_chunk *devmem =
>> -mdevice->devmem_chunks[i];
>> -
>> -memunmap_pages(>pagemap);
>> -if (devmem->pagemap.type == MEMORY_DEVICE_PRIVATE)
>> -release_mem_region(devmem->pagemap.range.start,
>> -
>> range_len(>pagemap.range));
>> -kfree(devmem);
>> -}
>> -kfree(mdevice->devmem_chunks);
>> -}
>> -
>> +dmirror_device_remove_chunks(mdevice);
>> cdev_del(>cdevice);
>> }
>
> Needed a bit or rework due to
> https://lkml.kernel.org/r/20220826050631.25771-1-mpent...@redhat.com.
> Please check my resolution.
Thanks. Rework looks good to me.
> --- a/lib/test_hmm.c~hmm-tests-add-test-for-migrate_device_range
> +++ a/lib/test_hmm.c
> @@ -100,6 +100,7 @@ struct dmirror {
> struct dmirror_chunk {
> struct dev_pagemap pagemap;
> struct dmirror_device *mdevice;
> + bool remove;
> };
>
> /*
> @@ -192,11 +193,15 @@ static int dmirror_fops_release(struct i
> return 0;
> }
>
> +static struct dmirror_chunk *dmirror_page_to_chunk(struct page *page)
> +{
> + return container_of(page->pgmap, struct dmirror_chunk, pagemap);
> +}
> +
> static struct dmirror_device *dmirror_page_to_device(struct page *page)
>
> {
> - return container_of(page->pgmap, struct dmirror_chunk,
> - pagemap)->mdevice;
> + return dmirror_page_to_chunk(page)->mdevice;
> }
>
> static int dmirror_do_fault(struct dmirror *dmirror, struct hmm_range *range)
> @@ -1218,6 +1223,85 @@ static int dmirror_snapshot(struct dmirr
> return ret;
> }
>
> +static void dmirror_device_evict_chunk(struct dmirror_chunk *chunk)
> +{
> + unsigned long start_pfn = chunk->pagemap.range.start >> PAGE_SHIFT;
> + unsigned long end_pfn = chunk->pagemap.range.end >> PAGE_SHIFT;
> + unsigned long npages = end_pfn - start_pfn + 1;
> + unsigned long i;
> + unsigned long *src_pfns;
> + unsigned long *dst_pfns;
> +
> + src_pfns = kcalloc(npages, sizeof(*src_pfns), GFP_KERNEL);
> + dst_pfns = kcalloc(npages, sizeof(*dst_pfns), GFP_KERNEL);
> +
> + migrate_device_range(src_pfns, start_pfn, npages);
> + for (i = 0; i < npages; i++) {
> + struct page *dpage, *spage;
> +
> + spage = migrate_pfn_to_page(src_pfns[i]);
> + if (!spage || !(src_pfns[i] & MIGRATE_PFN_MIGRATE))
> + continue;
> +
> + if (WARN_ON(!is_device_private_page(spage) &&
> + !is_device_coherent_page(spage)))
> + continue;
> + spage = BACKING_PAGE(spage);
> + dpage = alloc_page(GFP_HIGHUSER_MOVABLE | __GFP_NOFAIL);
> + lock_page(dpage);
> + copy_highpage(dpage, spage);
> + dst_pfns[i] = migrate_pfn(page_to_pfn(dpage));
> + if (src_pfns[i] & MIGRATE_PFN_WRITE)
> + dst_pfns[i] |= MIGRATE_PFN_WRITE;
> + }
> + migrate_device_pages(src_pfns, dst_pfns, npages);
> + migrate_device_finalize(src_pfns, dst_pfns, npages);
> + kfree(src_pfns);
> + kfree(dst_pfns);
> +}
> +
> +/* Removes free pages from the free list so they can't be re-allocated */
> +static void dmirror_remove_free_pages(struct dmirror_chunk *devmem)
> +{
> + struct dmirror_device *mdevice = devmem->mdevice;
> + struct page *page;
> +
> + for (page = mdevice->free_pages; page; page = page->zone_device_data)
> + if (dmirror_page_to_chunk(page) == devmem)
> + mdevice->free_pages = page->zone_device_data;
> +}
> +
> +static void dmirror_device_remove_chunks(struct dmirror_device *mdevice)
> +{
> + unsigned int i;
> +
> + mutex_lock(>devmem_lock);
> + if (mdevice->devmem_chunks) {
> + for (i = 0; i < mdevice->devmem_count; i++) {
> + struct dmirror_chunk *devmem =
> + mdevice->devmem_chunks[i];
> +
> + spin_lock(>lock);
> + devmem->remove = true;
> + dmirror_remove_free_pages(devmem);
> + spin_unlock(>lock);
> +
> + dmirror_device_evict_chunk(devmem);
> + memunmap_pages(>pagemap);
> + if (devmem->pagemap.type == MEMORY_DEVICE_PRIVATE)
> + release_mem_region(devmem->pagemap.range.start,
> +
>
