[RFC 6/7] drm/amdgpu/uvd4: add hardware specific functions for uvd 4.0
Piotr Redlewski
predlewski at gmail.com
Wed Nov 8 22:38:38 UTC 2017
Add logic for starting, stopping, suspending and resuming uvd block
Signed-off-by: Piotr Redlewski <predlewski at gmail.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c | 7 -
drivers/gpu/drm/amd/amdgpu/si.c | 250 ++++++++++++++++-
drivers/gpu/drm/amd/amdgpu/sid.h | 22 +-
drivers/gpu/drm/amd/amdgpu/uvd_v4_0.c | 488 ++++++++++++++++++++++++++++++++++
4 files changed, 736 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
index 9430d4809b53..0744117ee7d2 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
@@ -1695,13 +1695,6 @@ static void gfx_v6_0_gpu_init(struct amdgpu_device *adev)
WREG32(mmDMA_TILING_CONFIG + DMA0_REGISTER_OFFSET, gb_addr_config);
WREG32(mmDMA_TILING_CONFIG + DMA1_REGISTER_OFFSET, gb_addr_config);
-#if 0
- if (adev->has_uvd) {
- WREG32(mmUVD_UDEC_ADDR_CONFIG, gb_addr_config);
- WREG32(mmUVD_UDEC_DB_ADDR_CONFIG, gb_addr_config);
- WREG32(mmUVD_UDEC_DBW_ADDR_CONFIG, gb_addr_config);
- }
-#endif
gfx_v6_0_tiling_mode_table_init(adev);
gfx_v6_0_setup_rb(adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/si.c b/drivers/gpu/drm/amd/amdgpu/si.c
index 2ac1c2be8ca4..bc6fd1ff4f86 100644
--- a/drivers/gpu/drm/amd/amdgpu/si.c
+++ b/drivers/gpu/drm/amd/amdgpu/si.c
@@ -971,6 +971,28 @@ static void si_smc_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
spin_unlock_irqrestore(&adev->smc_idx_lock, flags);
}
+static u32 si_uvd_ctx_rreg(struct amdgpu_device *adev, u32 reg)
+{
+ unsigned long flags;
+ u32 r;
+
+ spin_lock_irqsave(&adev->uvd_ctx_idx_lock, flags);
+ WREG32(mmUVD_CTX_INDEX, ((reg) & 0x1ff));
+ r = RREG32(mmUVD_CTX_DATA);
+ spin_unlock_irqrestore(&adev->uvd_ctx_idx_lock, flags);
+ return r;
+}
+
+static void si_uvd_ctx_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&adev->uvd_ctx_idx_lock, flags);
+ WREG32(mmUVD_CTX_INDEX, ((reg) & 0x1ff));
+ WREG32(mmUVD_CTX_DATA, (v));
+ spin_unlock_irqrestore(&adev->uvd_ctx_idx_lock, flags);
+}
+
static struct amdgpu_allowed_register_entry si_allowed_read_registers[] = {
{GRBM_STATUS},
{GB_ADDR_CONFIG},
@@ -1219,9 +1241,231 @@ static u32 si_get_xclk(struct amdgpu_device *adev)
return reference_clock;
}
-//xxx:not implemented
+
+static unsigned si_uvd_calc_upll_post_div(unsigned vco_freq,
+ unsigned target_freq,
+ unsigned pd_min,
+ unsigned pd_even)
+{
+ unsigned post_div = vco_freq / target_freq;
+
+ /* adjust to post divider minimum value */
+ if (post_div < pd_min)
+ post_div = pd_min;
+
+ /* we alway need a frequency less than or equal the target */
+ if ((vco_freq / post_div) > target_freq)
+ post_div += 1;
+
+ /* post dividers above a certain value must be even */
+ if (post_div > pd_even && post_div % 2)
+ post_div += 1;
+
+ return post_div;
+}
+
+/**
+ * si_uvd_calc_upll_dividers - calc UPLL clock dividers
+ *
+ * @adev: amdgpu_device pointer
+ * @vclk: wanted VCLK
+ * @dclk: wanted DCLK
+ * @vco_min: minimum VCO frequency
+ * @vco_max: maximum VCO frequency
+ * @fb_factor: factor to multiply vco freq with
+ * @fb_mask: limit and bitmask for feedback divider
+ * @pd_min: post divider minimum
+ * @pd_max: post divider maximum
+ * @pd_even: post divider must be even above this value
+ * @optimal_fb_div: resulting feedback divider
+ * @optimal_vclk_div: resulting vclk post divider
+ * @optimal_dclk_div: resulting dclk post divider
+ *
+ * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
+ * Returns zero on success -EINVAL on error.
+ */
+int si_uvd_calc_upll_dividers(struct amdgpu_device *adev,
+ unsigned vclk, unsigned dclk,
+ unsigned vco_min, unsigned vco_max,
+ unsigned fb_factor, unsigned fb_mask,
+ unsigned pd_min, unsigned pd_max,
+ unsigned pd_even,
+ unsigned *optimal_fb_div,
+ unsigned *optimal_vclk_div,
+ unsigned *optimal_dclk_div)
+{
+ unsigned vco_freq, ref_freq = adev->clock.spll.reference_freq;
+
+ /* start off with something large */
+ unsigned optimal_score = ~0;
+
+ /* loop through vco from low to high */
+ vco_min = max(max(vco_min, vclk), dclk);
+ for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
+
+ uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
+ unsigned vclk_div, dclk_div, score;
+
+ do_div(fb_div, ref_freq);
+
+ /* fb div out of range ? */
+ if (fb_div > fb_mask)
+ break; /* it can oly get worse */
+
+ fb_div &= fb_mask;
+
+ /* calc vclk divider with current vco freq */
+ vclk_div = si_uvd_calc_upll_post_div(vco_freq, vclk,
+ pd_min, pd_even);
+ if (vclk_div > pd_max)
+ break; /* vco is too big, it has to stop */
+
+ /* calc dclk divider with current vco freq */
+ dclk_div = si_uvd_calc_upll_post_div(vco_freq, dclk,
+ pd_min, pd_even);
+ if (vclk_div > pd_max)
+ break; /* vco is too big, it has to stop */
+
+ /* calc score with current vco freq */
+ score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
+
+ /* determine if this vco setting is better than current optimal settings */
+ if (score < optimal_score) {
+ *optimal_fb_div = fb_div;
+ *optimal_vclk_div = vclk_div;
+ *optimal_dclk_div = dclk_div;
+ optimal_score = score;
+ if (optimal_score == 0)
+ break; /* it can't get better than this */
+ }
+ }
+
+ /* did we found a valid setup ? */
+ if (optimal_score == ~0)
+ return -EINVAL;
+
+ return 0;
+}
+
+int si_uvd_send_upll_ctlreq(struct amdgpu_device *adev,
+ unsigned cg_upll_func_cntl)
+{
+ unsigned i;
+
+ /* make sure UPLL_CTLREQ is deasserted */
+ WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
+
+ mdelay(10);
+
+ /* assert UPLL_CTLREQ */
+ WREG32_P(cg_upll_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(cg_upll_func_cntl) & mask) == mask)
+ break;
+ mdelay(10);
+ }
+
+ /* deassert UPLL_CTLREQ */
+ WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
+
+ if (i == 100) {
+ DRM_ERROR("Timeout setting UVD clocks!\n");
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
static int si_set_uvd_clocks(struct amdgpu_device *adev, u32 vclk, u32 dclk)
{
+ unsigned fb_div = 0, vclk_div = 0, dclk_div = 0;
+ int r;
+
+ /* bypass vclk and dclk with bclk */
+ WREG32_P(CG_UPLL_FUNC_CNTL_2,
+ VCLK_SRC_SEL(1) | DCLK_SRC_SEL(1),
+ ~(VCLK_SRC_SEL_MASK | DCLK_SRC_SEL_MASK));
+
+ /* put PLL in bypass mode */
+ WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_BYPASS_EN_MASK, ~UPLL_BYPASS_EN_MASK);
+
+ if (!vclk || !dclk) {
+ /* keep the Bypass mode */
+ return 0;
+ }
+
+ r = si_uvd_calc_upll_dividers(adev, vclk, dclk, 125000, 250000,
+ 16384, 0x03FFFFFF, 0, 128, 5,
+ &fb_div, &vclk_div, &dclk_div);
+
+ if (r)
+ return r;
+
+ /* set RESET_ANTI_MUX to 0 */
+ WREG32_P(CG_UPLL_FUNC_CNTL_5, 0, ~RESET_ANTI_MUX_MASK);
+
+ /* set VCO_MODE to 1 */
+ WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_VCO_MODE_MASK, ~UPLL_VCO_MODE_MASK);
+
+ /* disable sleep mode */
+ WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_SLEEP_MASK);
+
+ /* deassert UPLL_RESET */
+ WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_RESET_MASK);
+
+ mdelay(1);
+
+ r = si_uvd_send_upll_ctlreq(adev, CG_UPLL_FUNC_CNTL);
+ if (r)
+ return r;
+
+ /* assert UPLL_RESET again */
+ WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_RESET_MASK, ~UPLL_RESET_MASK);
+
+ /* disable spread spectrum. */
+ WREG32_P(CG_UPLL_SPREAD_SPECTRUM, 0, ~SSEN_MASK);
+
+ /* set feedback divider */
+ WREG32_P(CG_UPLL_FUNC_CNTL_3, UPLL_FB_DIV(fb_div), ~UPLL_FB_DIV_MASK);
+
+ /* set ref divider to 0 */
+ WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_REF_DIV_MASK);
+
+ if (fb_div < 307200)
+ WREG32_P(CG_UPLL_FUNC_CNTL_4, 0, ~UPLL_SPARE_ISPARE9);
+ else
+ WREG32_P(CG_UPLL_FUNC_CNTL_4, UPLL_SPARE_ISPARE9, ~UPLL_SPARE_ISPARE9);
+
+ /* set PDIV_A and PDIV_B */
+ WREG32_P(CG_UPLL_FUNC_CNTL_2,
+ UPLL_PDIV_A(vclk_div) | UPLL_PDIV_B(dclk_div),
+ ~(UPLL_PDIV_A_MASK | UPLL_PDIV_B_MASK));
+
+ /* give the PLL some time to settle */
+ mdelay(15);
+
+ /* deassert PLL_RESET */
+ WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_RESET_MASK);
+
+ mdelay(15);
+
+ /* switch from bypass mode to normal mode */
+ WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_BYPASS_EN_MASK);
+
+ r = si_uvd_send_upll_ctlreq(adev, CG_UPLL_FUNC_CNTL);
+ if (r)
+ return r;
+
+ /* switch VCLK and DCLK selection */
+ WREG32_P(CG_UPLL_FUNC_CNTL_2,
+ VCLK_SRC_SEL(2) | DCLK_SRC_SEL(2),
+ ~(VCLK_SRC_SEL_MASK | DCLK_SRC_SEL_MASK));
+
+ mdelay(100);
+
return 0;
}
@@ -1260,8 +1504,8 @@ static int si_common_early_init(void *handle)
adev->pcie_wreg = &si_pcie_wreg;
adev->pciep_rreg = &si_pciep_rreg;
adev->pciep_wreg = &si_pciep_wreg;
- adev->uvd_ctx_rreg = NULL;
- adev->uvd_ctx_wreg = NULL;
+ adev->uvd_ctx_rreg = &si_uvd_ctx_rreg;
+ adev->uvd_ctx_wreg = &si_uvd_ctx_wreg;
adev->didt_rreg = NULL;
adev->didt_wreg = NULL;
diff --git a/drivers/gpu/drm/amd/amdgpu/sid.h b/drivers/gpu/drm/amd/amdgpu/sid.h
index 42556e2fafd4..1fbe62e95c94 100644
--- a/drivers/gpu/drm/amd/amdgpu/sid.h
+++ b/drivers/gpu/drm/amd/amdgpu/sid.h
@@ -1621,27 +1621,7 @@
/*
* UVD
*/
-#define UVD_UDEC_ADDR_CONFIG 0x3bd3
-#define UVD_UDEC_DB_ADDR_CONFIG 0x3bd4
-#define UVD_UDEC_DBW_ADDR_CONFIG 0x3bd5
-#define UVD_RBC_RB_RPTR 0x3da4
-#define UVD_RBC_RB_WPTR 0x3da5
-#define UVD_STATUS 0x3daf
-
-#define UVD_CGC_CTRL 0x3dc2
-# define DCM (1 << 0)
-# define CG_DT(x) ((x) << 2)
-# define CG_DT_MASK (0xf << 2)
-# define CLK_OD(x) ((x) << 6)
-# define CLK_OD_MASK (0x1f << 6)
-
- /* UVD CTX indirect */
-#define UVD_CGC_MEM_CTRL 0xC0
-#define UVD_CGC_CTRL2 0xC1
-# define DYN_OR_EN (1 << 0)
-# define DYN_RR_EN (1 << 1)
-# define G_DIV_ID(x) ((x) << 2)
-# define G_DIV_ID_MASK (0x7 << 2)
+#define UVD_VCPU_CHIP_ID 0x3d35
/*
* PM4
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v4_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v4_0.c
index cfa6959db43d..e5f5e19657fa 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v4_0.c
@@ -36,8 +36,12 @@
#include "bif/bif_3_0_d.h"
+static void uvd_v4_0_mc_resume(struct amdgpu_device *adev);
static void uvd_v4_0_set_ring_funcs(struct amdgpu_device *adev);
static void uvd_v4_0_set_irq_funcs(struct amdgpu_device *adev);
+static int uvd_v4_0_start(struct amdgpu_device *adev);
+static void uvd_v4_0_stop(struct amdgpu_device *adev);
+static void uvd_v4_0_set_dcm(struct amdgpu_device *adev, bool sw_mode);
/**
* uvd_v4_0_ring_get_rptr - get read pointer
@@ -114,6 +118,8 @@ static int uvd_v4_0_sw_init(void *handle)
sprintf(ring->name, "uvd");
r = amdgpu_ring_init(adev, ring, 512, &adev->uvd.irq, 0);
+ /* TODO: move mc programming to hw init */
+ uvd_v4_0_mc_resume(adev);
return r;
}
@@ -129,6 +135,333 @@ static int uvd_v4_0_sw_fini(void *handle)
return amdgpu_uvd_sw_fini(adev);
}
+static void uvd_v4_0_enable_mgcg(struct amdgpu_device *adev,
+ bool enable)
+{
+ u32 orig, data;
+
+ if (enable && (adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG)) {
+ data = RREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL);
+ data |= 0x3fff;
+ WREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL, data);
+
+ orig = data = RREG32(mmUVD_CGC_CTRL);
+ data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
+ if (orig != data)
+ WREG32(mmUVD_CGC_CTRL, data);
+
+ WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_0, 0);
+ WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_1, 0);
+ } else {
+ data = RREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL);
+ data &= ~0x3fff;
+ WREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL, data);
+
+ orig = data = RREG32(mmUVD_CGC_CTRL);
+ data &= ~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
+ if (orig != data)
+ WREG32(mmUVD_CGC_CTRL, data);
+
+ WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_0, 0xffffffff);
+ WREG32_SMC(SMC_CG_IND_START + CG_CGTT_LOCAL_1, 0xffffffff);
+ }
+}
+
+/**
+ * uvd_v4_0_hw_init - start and test UVD block
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Initialize the hardware, boot up the VCPU and do some testing
+ */
+static int uvd_v4_0_hw_init(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ struct amdgpu_ring *ring = &adev->uvd.ring;
+ uint32_t tmp;
+ int r;
+
+ uvd_v4_0_enable_mgcg(adev, true);
+ amdgpu_asic_set_uvd_clocks(adev, 53300, 40000);
+ uvd_v4_0_start(adev);
+
+ ring->ready = true;
+ r = amdgpu_ring_test_ring(ring);
+ if (r) {
+ ring->ready = false;
+ goto done;
+ }
+
+ r = amdgpu_ring_alloc(ring, 10);
+ if (r) {
+ DRM_ERROR("amdgpu: ring failed to lock UVD ring (%d).\n", r);
+ goto done;
+ }
+
+ tmp = PACKET0(mmUVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0);
+ amdgpu_ring_write(ring, tmp);
+ amdgpu_ring_write(ring, 0xFFFFF);
+
+ tmp = PACKET0(mmUVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0);
+ amdgpu_ring_write(ring, tmp);
+ amdgpu_ring_write(ring, 0xFFFFF);
+
+ tmp = PACKET0(mmUVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0);
+ amdgpu_ring_write(ring, tmp);
+ amdgpu_ring_write(ring, 0xFFFFF);
+
+ /* Clear timeout status bits */
+ amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_TIMEOUT_STATUS, 0));
+ amdgpu_ring_write(ring, 0x8);
+
+ amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_CNTL, 0));
+ amdgpu_ring_write(ring, 3);
+
+ amdgpu_ring_commit(ring);
+
+done:
+ if (!r)
+ DRM_INFO("UVD initialized successfully.\n");
+
+ return r;
+}
+
+/**
+ * uvd_v4_0_hw_fini - stop the hardware block
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Stop the UVD block, mark ring as not ready any more
+ */
+static int uvd_v4_0_hw_fini(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ struct amdgpu_ring *ring = &adev->uvd.ring;
+
+ if (RREG32(mmUVD_STATUS) != 0)
+ uvd_v4_0_stop(adev);
+
+ ring->ready = false;
+
+ return 0;
+}
+
+static int uvd_v4_0_suspend(void *handle)
+{
+ int r;
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ r = uvd_v4_0_hw_fini(adev);
+ if (r)
+ return r;
+
+ return amdgpu_uvd_suspend(adev);
+}
+
+static int uvd_v4_0_resume(void *handle)
+{
+ int r;
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ r = amdgpu_uvd_resume(adev);
+ if (r)
+ return r;
+
+ return uvd_v4_0_hw_init(adev);
+}
+
+/**
+ * uvd_v4_0_start - start UVD block
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Setup and start the UVD block
+ */
+static int uvd_v4_0_start(struct amdgpu_device *adev)
+{
+ struct amdgpu_ring *ring = &adev->uvd.ring;
+ uint32_t rb_bufsz;
+ int i, j, r;
+ u32 tmp;
+ /* disable byte swapping */
+ u32 lmi_swap_cntl = 0;
+ u32 mp_swap_cntl = 0;
+
+ /* set uvd busy */
+ WREG32_P(mmUVD_STATUS, 1<<2, ~(1<<2));
+
+ uvd_v4_0_set_dcm(adev, true);
+ WREG32(mmUVD_CGC_GATE, 0);
+
+ /* take UVD block out of reset */
+ WREG32_P(mmSRBM_SOFT_RESET, 0, ~SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK);
+ mdelay(5);
+
+ /* enable VCPU clock */
+ WREG32(mmUVD_VCPU_CNTL, 1 << 9);
+
+ /* disable interupt */
+ WREG32_P(mmUVD_MASTINT_EN, 0, ~(1 << 1));
+
+#ifdef __BIG_ENDIAN
+ /* swap (8 in 32) RB and IB */
+ lmi_swap_cntl = 0xa;
+ mp_swap_cntl = 0;
+#endif
+ WREG32(mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl);
+ WREG32(mmUVD_MP_SWAP_CNTL, mp_swap_cntl);
+ /* initialize UVD memory controller */
+ WREG32(mmUVD_LMI_CTRL, 0x203108);
+
+ tmp = RREG32(mmUVD_MPC_CNTL);
+ WREG32(mmUVD_MPC_CNTL, tmp | 0x10);
+
+ WREG32(mmUVD_MPC_SET_MUXA0, 0x40c2040);
+ WREG32(mmUVD_MPC_SET_MUXA1, 0x0);
+ WREG32(mmUVD_MPC_SET_MUXB0, 0x40c2040);
+ WREG32(mmUVD_MPC_SET_MUXB1, 0x0);
+ WREG32(mmUVD_MPC_SET_ALU, 0);
+ WREG32(mmUVD_MPC_SET_MUX, 0x88);
+
+ uvd_v4_0_mc_resume(adev);
+
+ tmp = RREG32_UVD_CTX(ixUVD_LMI_CACHE_CTRL);
+ WREG32_UVD_CTX(ixUVD_LMI_CACHE_CTRL, tmp & (~0x10));
+
+ /* enable UMC */
+ WREG32_P(mmUVD_LMI_CTRL2, 0, ~(1 << 8));
+
+ WREG32_P(mmUVD_SOFT_RESET, 0, ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK);
+
+ WREG32_P(mmUVD_SOFT_RESET, 0, ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
+
+ WREG32_P(mmUVD_SOFT_RESET, 0, ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
+
+ mdelay(10);
+
+ for (i = 0; i < 10; ++i) {
+ uint32_t status;
+ for (j = 0; j < 100; ++j) {
+ status = RREG32(mmUVD_STATUS);
+ if (status & 2)
+ break;
+ mdelay(10);
+ }
+ r = 0;
+ if (status & 2)
+ break;
+
+ DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n");
+ WREG32_P(mmUVD_SOFT_RESET, UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
+ ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
+ mdelay(10);
+ WREG32_P(mmUVD_SOFT_RESET, 0, ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
+ mdelay(10);
+ r = -1;
+ }
+
+ if (r) {
+ DRM_ERROR("UVD not responding, giving up!!!\n");
+ return r;
+ }
+
+ /* enable interupt */
+ WREG32_P(mmUVD_MASTINT_EN, 3<<1, ~(3 << 1));
+
+ WREG32_P(mmUVD_STATUS, 0, ~(1<<2));
+
+ /* force RBC into idle state */
+ WREG32(mmUVD_RBC_RB_CNTL, 0x11010101);
+
+ /* Set the write pointer delay */
+ WREG32(mmUVD_RBC_RB_WPTR_CNTL, 0);
+
+ /* programm the 4GB memory segment for rptr and ring buffer */
+ WREG32(mmUVD_LMI_EXT40_ADDR, upper_32_bits(ring->gpu_addr) |
+ (0x7 << 16) | (0x1 << 31));
+
+ /* Initialize the ring buffer's read and write pointers */
+ WREG32(mmUVD_RBC_RB_RPTR, 0x0);
+
+ ring->wptr = RREG32(mmUVD_RBC_RB_RPTR);
+ WREG32(mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
+
+ /* set the ring address */
+ WREG32(mmUVD_RBC_RB_BASE, ring->gpu_addr);
+
+ /* Set ring buffer size */
+ rb_bufsz = order_base_2(ring->ring_size);
+ rb_bufsz = (0x1 << 8) | rb_bufsz;
+ WREG32_P(mmUVD_RBC_RB_CNTL, rb_bufsz, ~0x11f1f);
+
+ return 0;
+}
+
+
+/**
+ * uvd_v4_0_stop - stop UVD block
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * stop the UVD block
+ */
+static void uvd_v4_0_stop(struct amdgpu_device *adev)
+{
+ uint32_t i, j;
+ uint32_t status;
+
+ WREG32(mmUVD_RBC_RB_CNTL, 0x11010101);
+
+ for (i = 0; i < 10; ++i) {
+ for (j = 0; j < 100; ++j) {
+ status = RREG32(mmUVD_STATUS);
+ if (status & 2)
+ break;
+ mdelay(1);
+ }
+ if (status & 2)
+ break;
+ }
+
+ for (i = 0; i < 10; ++i) {
+ for (j = 0; j < 100; ++j) {
+ status = RREG32(mmUVD_LMI_STATUS);
+ if (status & 0xf)
+ break;
+ mdelay(1);
+ }
+ if (status & 0xf)
+ break;
+ }
+
+ /* Stall UMC and register bus before resetting VCPU */
+ WREG32_P(mmUVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
+
+ for (i = 0; i < 10; ++i) {
+ for (j = 0; j < 100; ++j) {
+ status = RREG32(mmUVD_LMI_STATUS);
+ if (status & 0x240)
+ break;
+ mdelay(1);
+ }
+ if (status & 0x240)
+ break;
+ }
+
+ WREG32_P(0x3D49, 0, ~(1 << 2));
+
+ WREG32_P(mmUVD_VCPU_CNTL, 0, ~(1 << 9));
+
+ /* put LMI, VCPU, RBC etc... into reset */
+ WREG32(mmUVD_SOFT_RESET, UVD_SOFT_RESET__LMI_SOFT_RESET_MASK |
+ UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK |
+ UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
+
+ WREG32(mmUVD_STATUS, 0);
+
+ uvd_v4_0_set_dcm(adev, false);
+}
+
/**
* uvd_v4_0_ring_emit_fence - emit an fence & trap command
*
@@ -245,6 +578,126 @@ static void uvd_v4_0_ring_emit_ib(struct amdgpu_ring *ring,
amdgpu_ring_write(ring, ib->length_dw);
}
+/**
+ * uvd_v4_0_mc_resume - memory controller programming
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Let the UVD memory controller know it's offsets
+ */
+static void uvd_v4_0_mc_resume(struct amdgpu_device *adev)
+{
+ uint64_t addr;
+ uint32_t size, chip_id;
+ const struct common_firmware_header *hdr;
+
+ hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
+ /* programm the VCPU memory controller bits 0-27 */
+ addr = (adev->uvd.gpu_addr + AMDGPU_UVD_FIRMWARE_OFFSET) >> 3;
+ size = (AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8) -
+ AMDGPU_UVD_FIRMWARE_OFFSET) >> 3;
+ WREG32(mmUVD_VCPU_CACHE_OFFSET0, addr);
+ WREG32(mmUVD_VCPU_CACHE_SIZE0, size);
+
+ addr += size;
+ size = AMDGPU_UVD_HEAP_SIZE >> 3;
+ WREG32(mmUVD_VCPU_CACHE_OFFSET1, addr);
+ WREG32(mmUVD_VCPU_CACHE_SIZE1, size);
+
+ addr += size;
+ size = (AMDGPU_UVD_STACK_SIZE +
+ (AMDGPU_UVD_SESSION_SIZE * adev->uvd.max_handles)) >> 3;
+ WREG32(mmUVD_VCPU_CACHE_OFFSET2, addr);
+ WREG32(mmUVD_VCPU_CACHE_SIZE2, size);
+
+ /* bits 28-31 */
+ addr = (adev->uvd.gpu_addr >> 28) & 0xF;
+ WREG32(mmUVD_LMI_ADDR_EXT, (addr << 12) | (addr << 0));
+
+ /* bits 32-39 */
+ addr = (adev->uvd.gpu_addr >> 32) & 0xFF;
+ WREG32(mmUVD_LMI_EXT40_ADDR, addr | (0x9 << 16) | (0x1 << 31));
+
+ WREG32(mmUVD_UDEC_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
+ WREG32(mmUVD_UDEC_DB_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
+ WREG32(mmUVD_UDEC_DBW_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
+
+ /* tell firmware which hardware it is running on */
+ switch (adev->asic_type) {
+ case CHIP_TAHITI:
+ chip_id = 0x01000014;
+ break;
+ case CHIP_VERDE:
+ chip_id = 0x01000015;
+ break;
+ case CHIP_PITCAIRN:
+ case CHIP_OLAND:
+ chip_id = 0x01000016;
+ break;
+ default:
+ return;
+ }
+ WREG32(UVD_VCPU_CHIP_ID, chip_id);
+}
+
+static void uvd_v4_0_set_dcm(struct amdgpu_device *adev,
+ bool sw_mode)
+{
+ u32 tmp, tmp2;
+
+ WREG32_FIELD(UVD_CGC_GATE, REGS, 0);
+
+ tmp = RREG32(mmUVD_CGC_CTRL);
+ tmp &= ~(UVD_CGC_CTRL__CLK_OFF_DELAY_MASK | UVD_CGC_CTRL__CLK_GATE_DLY_TIMER_MASK);
+ tmp |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK |
+ (1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT) |
+ (4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT);
+
+ if (sw_mode) {
+ tmp &= ~0x7ffff800;
+ tmp2 = UVD_CGC_CTRL2__DYN_OCLK_RAMP_EN_MASK |
+ UVD_CGC_CTRL2__DYN_RCLK_RAMP_EN_MASK |
+ (7 << UVD_CGC_CTRL2__GATER_DIV_ID__SHIFT);
+ } else {
+ tmp |= 0x7ffff800;
+ tmp2 = 0;
+ }
+
+ WREG32(mmUVD_CGC_CTRL, tmp);
+ WREG32_UVD_CTX(ixUVD_CGC_CTRL2, tmp2);
+}
+
+static bool uvd_v4_0_is_idle(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ return !(RREG32(mmSRBM_STATUS) & SRBM_STATUS__UVD_BUSY_MASK);
+}
+
+static int uvd_v4_0_wait_for_idle(void *handle)
+{
+ unsigned i;
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ for (i = 0; i < adev->usec_timeout; i++) {
+ if (!(RREG32(mmSRBM_STATUS) & SRBM_STATUS__UVD_BUSY_MASK))
+ return 0;
+ }
+ return -ETIMEDOUT;
+}
+
+static int uvd_v4_0_soft_reset(void *handle)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ uvd_v4_0_stop(adev);
+
+ WREG32_P(mmSRBM_SOFT_RESET, SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK, ~SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK);
+ mdelay(5);
+
+ return uvd_v4_0_start(adev);
+}
+
static int uvd_v4_0_set_interrupt_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
unsigned int type,
@@ -263,12 +716,47 @@ static int uvd_v4_0_process_interrupt(struct amdgpu_device *adev,
return 0;
}
+static int uvd_v4_0_set_clockgating_state(void *handle,
+ enum amd_clockgating_state state)
+{
+ return 0;
+}
+
+static int uvd_v4_0_set_powergating_state(void *handle,
+ enum amd_powergating_state state)
+{
+ /* This doesn't actually powergate the UVD block.
+ * That's done in the dpm code via the SMC. This
+ * just re-inits the block as necessary. The actual
+ * gating still happens in the dpm code. We should
+ * revisit this when there is a cleaner line between
+ * the smc and the hw blocks
+ */
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ if (state == AMD_PG_STATE_GATE) {
+ uvd_v4_0_stop(adev);
+ return 0;
+ } else {
+ return uvd_v4_0_start(adev);
+ }
+}
+
static const struct amd_ip_funcs uvd_v4_0_ip_funcs = {
.name = "uvd_v4_0",
.early_init = uvd_v4_0_early_init,
.late_init = NULL,
.sw_init = uvd_v4_0_sw_init,
.sw_fini = uvd_v4_0_sw_fini,
+ .hw_init = uvd_v4_0_hw_init,
+ .hw_fini = uvd_v4_0_hw_fini,
+ .suspend = uvd_v4_0_suspend,
+ .resume = uvd_v4_0_resume,
+ .is_idle = uvd_v4_0_is_idle,
+ .wait_for_idle = uvd_v4_0_wait_for_idle,
+ .soft_reset = uvd_v4_0_soft_reset,
+ .set_clockgating_state = uvd_v4_0_set_clockgating_state,
+ .set_powergating_state = uvd_v4_0_set_powergating_state,
};
static const struct amdgpu_ring_funcs uvd_v4_0_ring_funcs = {
--
2.15.0
More information about the amd-gfx
mailing list