From: Alex Deucher <alexander.deuc...@amd.com>
v2: write clk registers only once!
v3: update cg scratch register properly
v4: add TN support
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Christian König <christian.koe...@amd.com>
Reviewed-by: Jerome Glisse <jgli...@redhat.com>
---
drivers/gpu/drm/radeon/evergreen.c | 47 ++++++++++++++++++++++++++++++++++
drivers/gpu/drm/radeon/evergreend.h | 10 ++++++++
drivers/gpu/drm/radeon/radeon_asic.c | 2 ++
drivers/gpu/drm/radeon/radeon_asic.h | 1 +
4 files changed, 60 insertions(+)
diff --git a/drivers/gpu/drm/radeon/evergreen.c
b/drivers/gpu/drm/radeon/evergreen.c
index 18b66ff..bdd3d34 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -84,6 +84,53 @@ void evergreen_tiling_fields(unsigned tiling_flags, unsigned
*bankw,
}
}
+static int sumo_set_uvd_clock(struct radeon_device *rdev, u32 clock,
+ u32 cntl_reg, u32 status_reg)
+{
+ int r, i;
+ struct atom_clock_dividers dividers;
+
+ r = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
+ clock, false, ÷rs);
+ if (r)
+ return r;
+
+ WREG32_P(cntl_reg, dividers.post_div,
~(DCLK_DIR_CNTL_EN|DCLK_DIVIDER_MASK));
+
+ for (i = 0; i < 100; i++) {
+ if (RREG32(status_reg) & DCLK_STATUS)
+ break;
+ mdelay(10);
+ }
+ if (i == 100)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+int sumo_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk)
+{
+ int r = 0;
+ u32 cg_scratch = RREG32(CG_SCRATCH1);
+
+ r = sumo_set_uvd_clock(rdev, vclk, CG_VCLK_CNTL, CG_VCLK_STATUS);
+ if (r)
+ goto done;
+ cg_scratch &= 0xffff0000;
+ cg_scratch |= vclk / 100; /* Mhz */
+
+ r = sumo_set_uvd_clock(rdev, dclk, CG_DCLK_CNTL, CG_DCLK_STATUS);
+ if (r)
+ goto done;
+ cg_scratch &= 0x0000ffff;
+ cg_scratch |= (dclk / 100) << 16; /* Mhz */
+
+done:
+ WREG32(CG_SCRATCH1, cg_scratch);
+
+ return r;
+}
+
void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev)
{
u16 ctl, v;
diff --git a/drivers/gpu/drm/radeon/evergreend.h
b/drivers/gpu/drm/radeon/evergreend.h
index c5d873e..b6491a3 100644
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -53,6 +53,16 @@
#define RCU_IND_INDEX 0x100
#define RCU_IND_DATA 0x104
+/* fusion uvd clocks */
+#define CG_DCLK_CNTL 0x610
+# define DCLK_DIVIDER_MASK 0x7f
+# define DCLK_DIR_CNTL_EN (1 << 8)
+#define CG_DCLK_STATUS 0x614
+# define DCLK_STATUS (1 << 0)
+#define CG_VCLK_CNTL 0x618
+#define CG_VCLK_STATUS 0x61c
+#define CG_SCRATCH1 0x820
+
#define GRBM_GFX_INDEX 0x802C
#define INSTANCE_INDEX(x) ((x) << 0)
#define SE_INDEX(x) ((x) << 16)
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c
b/drivers/gpu/drm/radeon/radeon_asic.c
index a7a7b2b..d3992d9 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -1373,6 +1373,7 @@ static struct radeon_asic sumo_asic = {
.get_pcie_lanes = NULL,
.set_pcie_lanes = NULL,
.set_clock_gating = NULL,
+ .set_uvd_clocks = &sumo_set_uvd_clocks,
},
.pflip = {
.pre_page_flip = &evergreen_pre_page_flip,
@@ -1744,6 +1745,7 @@ static struct radeon_asic trinity_asic = {
.get_pcie_lanes = NULL,
.set_pcie_lanes = NULL,
.set_clock_gating = NULL,
+ .set_uvd_clocks = &sumo_set_uvd_clocks,
},
.pflip = {
.pre_page_flip = &evergreen_pre_page_flip,
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h
b/drivers/gpu/drm/radeon/radeon_asic.h
index 515db96..37f28a3 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -459,6 +459,7 @@ extern void evergreen_pm_prepare(struct radeon_device
*rdev);
extern void evergreen_pm_finish(struct radeon_device *rdev);
extern void sumo_pm_init_profile(struct radeon_device *rdev);
extern void btc_pm_init_profile(struct radeon_device *rdev);
+int sumo_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk);
extern void evergreen_pre_page_flip(struct radeon_device *rdev, int crtc);
extern u32 evergreen_page_flip(struct radeon_device *rdev, int crtc, u64
crtc_base);
extern void evergreen_post_page_flip(struct radeon_device *rdev, int crtc);
--
1.7.9.5
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