From: Christian König <christian.koenig@xxxxxxx>
For setting clocks with VCE v1.0
v2: (chk) rebased on current tree
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/radeon/radeon.h | 7 ++
drivers/gpu/drm/radeon/radeon_asic.c | 1 +
drivers/gpu/drm/radeon/radeon_asic.h | 1 +
drivers/gpu/drm/radeon/si.c | 121 +++++++++++++++++++++++++++++++++++
drivers/gpu/drm/radeon/sid.h | 27 ++++++++
5 files changed, 157 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 34c51a2..38603b1 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -2577,6 +2577,13 @@ static inline struct radeon_fence *to_radeon_fence(struct fence *f)
tmp_ |= ((val) & ~(mask)); \
WREG32_PLL(reg, tmp_); \
} while (0)
+#define WREG32_SMC_P(reg, val, mask) \
+ do { \
+ uint32_t tmp_ = RREG32_SMC(reg); \
+ tmp_ &= (mask); \
+ tmp_ |= ((val) & ~(mask)); \
+ WREG32_SMC(reg, tmp_); \
+ } while (0)
#define DREG32_SYS(sqf, rdev, reg) seq_printf((sqf), #reg " : 0x%08X\n", r100_mm_rreg((rdev), (reg), false))
#define RREG32_IO(reg) r100_io_rreg(rdev, (reg))
#define WREG32_IO(reg, v) r100_io_wreg(rdev, (reg), (v))
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 8dbf508..4227b30 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -1973,6 +1973,7 @@ static struct radeon_asic si_asic = {
.set_pcie_lanes = &r600_set_pcie_lanes,
.set_clock_gating = NULL,
.set_uvd_clocks = &si_set_uvd_clocks,
+ .set_vce_clocks = &si_set_vce_clocks,
.get_temperature = &si_get_temp,
},
.dpm = {
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index cb7787f..0469d44 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -745,6 +745,7 @@ void si_dma_vm_flush(struct radeon_device *rdev, struct radeon_ring *ring,
u32 si_get_xclk(struct radeon_device *rdev);
uint64_t si_get_gpu_clock_counter(struct radeon_device *rdev);
int si_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk);
+int si_set_vce_clocks(struct radeon_device *rdev, u32 evclk, u32 ecclk);
int si_get_temp(struct radeon_device *rdev);
int si_get_allowed_info_register(struct radeon_device *rdev,
u32 reg, u32 *val);
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index b1d74bc..6ff78bc 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -7675,3 +7675,124 @@ static void si_program_aspm(struct radeon_device *rdev)
}
}
}
+
+int si_vce_send_vcepll_ctlreq(struct radeon_device *rdev)
+{
+ unsigned i;
+
+ /* make sure VCEPLL_CTLREQ is deasserted */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~UPLL_CTLREQ_MASK);
+
+ mdelay(10);
+
+ /* assert UPLL_CTLREQ */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
+
+ /* wait for CTLACK and CTLACK2 to get asserted */
+ for (i = 0; i < 100; ++i) {
+ uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
+ if ((RREG32_SMC(CG_VCEPLL_FUNC_CNTL) & mask) == mask)
+ break;
+ mdelay(10);
+ }
+
+ /* deassert UPLL_CTLREQ */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~UPLL_CTLREQ_MASK);
+
+ if (i == 100) {
+ DRM_ERROR("Timeout setting UVD clocks!\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+int si_set_vce_clocks(struct radeon_device *rdev, u32 evclk, u32 ecclk)
+{
+ unsigned fb_div = 0, evclk_div = 0, ecclk_div = 0;
+ int r;
+
+ /* bypass evclk and ecclk with bclk */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL_2,
+ EVCLK_SRC_SEL(1) | ECCLK_SRC_SEL(1),
+ ~(EVCLK_SRC_SEL_MASK | ECCLK_SRC_SEL_MASK));
+
+ /* put PLL in bypass mode */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, VCEPLL_BYPASS_EN_MASK,
+ ~VCEPLL_BYPASS_EN_MASK);
+
+ if (!evclk || !ecclk) {
+ /* keep the Bypass mode, put PLL to sleep */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, VCEPLL_SLEEP_MASK,
+ ~VCEPLL_SLEEP_MASK);
+ return 0;
+ }
+
+ r = radeon_uvd_calc_upll_dividers(rdev, evclk, ecclk, 125000, 250000,
+ 16384, 0x03FFFFFF, 0, 128, 5,
+ &fb_div, &evclk_div, &ecclk_div);
+ if (r)
+ return r;
+
+ /* set RESET_ANTI_MUX to 0 */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL_5, 0, ~RESET_ANTI_MUX_MASK);
+
+ /* set VCO_MODE to 1 */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, VCEPLL_VCO_MODE_MASK,
+ ~VCEPLL_VCO_MODE_MASK);
+
+ /* toggle VCEPLL_SLEEP to 1 then back to 0 */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, VCEPLL_SLEEP_MASK,
+ ~VCEPLL_SLEEP_MASK);
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~VCEPLL_SLEEP_MASK);
+
+ /* deassert VCEPLL_RESET */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~VCEPLL_RESET_MASK);
+
+ mdelay(1);
+
+ r = si_vce_send_vcepll_ctlreq(rdev);
+ if (r)
+ return r;
+
+ /* assert VCEPLL_RESET again */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, VCEPLL_RESET_MASK, ~VCEPLL_RESET_MASK);
+
+ /* disable spread spectrum. */
+ WREG32_SMC_P(CG_VCEPLL_SPREAD_SPECTRUM, 0, ~SSEN_MASK);
+
+ /* set feedback divider */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL_3, VCEPLL_FB_DIV(fb_div), ~VCEPLL_FB_DIV_MASK);
+
+ /* set ref divider to 0 */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~VCEPLL_REF_DIV_MASK);
+
+ /* set PDIV_A and PDIV_B */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL_2,
+ VCEPLL_PDIV_A(evclk_div) | VCEPLL_PDIV_B(ecclk_div),
+ ~(VCEPLL_PDIV_A_MASK | VCEPLL_PDIV_B_MASK));
+
+ /* give the PLL some time to settle */
+ mdelay(15);
+
+ /* deassert PLL_RESET */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~VCEPLL_RESET_MASK);
+
+ mdelay(15);
+
+ /* switch from bypass mode to normal mode */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL, 0, ~VCEPLL_BYPASS_EN_MASK);
+
+ r = si_vce_send_vcepll_ctlreq(rdev);
+ if (r)
+ return r;
+
+ /* switch VCLK and DCLK selection */
+ WREG32_SMC_P(CG_VCEPLL_FUNC_CNTL_2,
+ EVCLK_SRC_SEL(16) | ECCLK_SRC_SEL(16),
+ ~(EVCLK_SRC_SEL_MASK | ECCLK_SRC_SEL_MASK));
+
+ mdelay(100);
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 3afac30..1630440 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -1917,4 +1917,31 @@
#define VCE_CMD_IB_AUTO 0x00000005
#define VCE_CMD_SEMAPHORE 0x00000006
+/* discrete vce clocks */
+#define CG_VCEPLL_FUNC_CNTL 0xc0030600
+# define VCEPLL_RESET_MASK 0x00000001
+# define VCEPLL_SLEEP_MASK 0x00000002
+# define VCEPLL_BYPASS_EN_MASK 0x00000004
+# define VCEPLL_CTLREQ_MASK 0x00000008
+# define VCEPLL_VCO_MODE_MASK 0x00000600
+# define VCEPLL_REF_DIV_MASK 0x003F0000
+# define VCEPLL_CTLACK_MASK 0x40000000
+# define VCEPLL_CTLACK2_MASK 0x80000000
+#define CG_VCEPLL_FUNC_CNTL_2 0xc0030601
+# define VCEPLL_PDIV_A(x) ((x) << 0)
+# define VCEPLL_PDIV_A_MASK 0x0000007F
+# define VCEPLL_PDIV_B(x) ((x) << 8)
+# define VCEPLL_PDIV_B_MASK 0x00007F00
+# define EVCLK_SRC_SEL(x) ((x) << 20)
+# define EVCLK_SRC_SEL_MASK 0x01F00000
+# define ECCLK_SRC_SEL(x) ((x) << 25)
+# define ECCLK_SRC_SEL_MASK 0x3E000000
+#define CG_VCEPLL_FUNC_CNTL_3 0xc0030602
+# define VCEPLL_FB_DIV(x) ((x) << 0)
+# define VCEPLL_FB_DIV_MASK 0x01FFFFFF
+#define CG_VCEPLL_FUNC_CNTL_4 0xc0030603
+#define CG_VCEPLL_FUNC_CNTL_5 0xc0030604
+#define CG_VCEPLL_SPREAD_SPECTRUM 0xc0030606
+# define VCEPLL_SSEN_MASK 0x00000001
+
#endif
--
1.9.1
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