On Mon, Jul 22, 2019 at 01:11:40PM +0530, Anshuman Gupta wrote:
On 2019-07-19 at 11:39:54 -0700, Lucas De Marchi wrote:
On Thu, Jul 18, 2019 at 11:17:03AM +0530, Anshuman Gupta wrote:
>On 2019-07-12 at 18:09:39 -0700, Lucas De Marchi wrote:
>>From: José Roberto de Souza <jose.so...@intel.com>
>>
>>Tiger Lask has a new register offset for DC5 and DC6 residency counters.
>>
>>Signed-off-by: José Roberto de Souza <jose.so...@intel.com>
>>Signed-off-by: Lucas De Marchi <lucas.demar...@intel.com>
>>---
>> drivers/gpu/drm/i915/i915_debugfs.c | 21 +++++++++++++--------
>> drivers/gpu/drm/i915/i915_reg.h     |  2 ++
>> 2 files changed, 15 insertions(+), 8 deletions(-)
>>
>>diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
b/drivers/gpu/drm/i915/i915_debugfs.c
>>index a1843e3de6d7..4b12b5588dd6 100644
>>--- a/drivers/gpu/drm/i915/i915_debugfs.c
>>+++ b/drivers/gpu/drm/i915/i915_debugfs.c
>>@@ -2465,6 +2465,7 @@ static int i915_dmc_info(struct seq_file *m, void 
*unused)
>>        struct drm_i915_private *dev_priv = node_to_i915(m->private);
>>        intel_wakeref_t wakeref;
>>        struct intel_csr *csr;
>>+       i915_reg_t dc5_reg, dc6_reg = {};
>>
>>        if (!HAS_CSR(dev_priv))
>>                return -ENODEV;
>>@@ -2482,15 +2483,19 @@ static int i915_dmc_info(struct seq_file *m, void 
*unused)
>>        seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
>>                   CSR_VERSION_MINOR(csr->version));
>>
>>-       if (WARN_ON(INTEL_GEN(dev_priv) > 11))
>>-               goto out;
>>+       if (INTEL_GEN(dev_priv) >= 12) {
Below DMC debug registers offsets are specific to TGL,
So it would make sense to add IS_TIGERLAKE condition?

I think we can leave it with gen >= 12 and change it when/if the next
platform change that.


>>+               dc5_reg = TGL_CSR_DC5_RES_COUNT;
>>+               dc6_reg = TGL_CSR_DC6_RES_COUNT;
>>+       } else {
>>+               dc5_reg = IS_BROXTON(dev_priv) ? BXT_CSR_DC3_DC5_COUNT :
>>+                                                SKL_CSR_DC3_DC5_COUNT;
>>+               if (!IS_GEN9_LP(dev_priv))
>>+                       dc6_reg = SKL_CSR_DC5_DC6_COUNT;
>>+       }
>>
>>-       seq_printf(m, "DC3 -> DC5 count: %d\n",
>>-                  I915_READ(IS_BROXTON(dev_priv) ? BXT_CSR_DC3_DC5_COUNT :
>>-                                                   SKL_CSR_DC3_DC5_COUNT));
>>-       if (!IS_GEN9_LP(dev_priv))
>>-               seq_printf(m, "DC5 -> DC6 count: %d\n",
>>-                          I915_READ(SKL_CSR_DC5_DC6_COUNT));
>>+       seq_printf(m, "DC3 -> DC5 count: %d\n", I915_READ(dc5_reg));
>>+       if (dc6_reg.reg)
>>+               seq_printf(m, "DC5 -> DC6 count: %d\n", I915_READ(dc6_reg));
>>
>> out:
>>        seq_printf(m, "program base: 0x%08x\n", I915_READ(CSR_PROGRAM(0)));
>>diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
>>index 6cfcdf6bb1bb..5e3434cdd1e8 100644
>>--- a/drivers/gpu/drm/i915/i915_reg.h
>>+++ b/drivers/gpu/drm/i915/i915_reg.h
>>@@ -7269,6 +7269,8 @@ enum {
>> #define SKL_CSR_DC3_DC5_COUNT  _MMIO(0x80030)
>> #define SKL_CSR_DC5_DC6_COUNT  _MMIO(0x8002C)
>> #define BXT_CSR_DC3_DC5_COUNT  _MMIO(0x80038)
>>+#define TGL_CSR_DC5_RES_COUNT  _MMIO(0x101084)
>>+#define TGL_CSR_DC6_RES_COUNT  _MMIO(0x101088)
>CSR memory ranges from 0x80000 till 0x8ffff
>These DMC_DEBUG regisers are not are not CSR register.
>It would make sense to rename the macro.

True.

TGL_DMC_DEBUG_DC5_COUNT and TGL_DMC_DEBUG_DC6_COUNT sounds good?
yes!

thanks, I'll send an updated version.

Lucas De Marchi


Lucas De Marchi

>>
>> /* interrupts */
>> #define DE_MASTER_IRQ_CONTROL   (1 << 31)
>>--
>>2.21.0
>>
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