From 0b2138a45516ba83445a3c9a8aa38a1fb42c71bc Mon Sep 17 00:00:00 2001 From: Huang Rui Date: Wed, 14 Sep 2016 15:55:48 +0800 Subject: [PATCH] drm/amdgpu: implement raster configuration for gfx v7 This patch is to implement the raster configuration and harvested configuration of gfx v7. Signed-off-by: Huang Rui Reviewed-by: Alex Deucher Acked-by: Edward O'Callaghan Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/cikd.h | 36 ++++++ drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 160 +++++++++++++++++++++++++- 2 files changed, 195 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/cikd.h b/drivers/gpu/drm/amd/amdgpu/cikd.h index c4f6f00d62bc..8659852aea9e 100644 --- a/drivers/gpu/drm/amd/amdgpu/cikd.h +++ b/drivers/gpu/drm/amd/amdgpu/cikd.h @@ -562,4 +562,40 @@ enum { MTYPE_NONCACHED = 3 }; +/* mmPA_SC_RASTER_CONFIG mask */ +#define RB_MAP_PKR0(x) ((x) << 0) +#define RB_MAP_PKR0_MASK (0x3 << 0) +#define RB_MAP_PKR1(x) ((x) << 2) +#define RB_MAP_PKR1_MASK (0x3 << 2) +#define RB_XSEL2(x) ((x) << 4) +#define RB_XSEL2_MASK (0x3 << 4) +#define RB_XSEL (1 << 6) +#define RB_YSEL (1 << 7) +#define PKR_MAP(x) ((x) << 8) +#define PKR_MAP_MASK (0x3 << 8) +#define PKR_XSEL(x) ((x) << 10) +#define PKR_XSEL_MASK (0x3 << 10) +#define PKR_YSEL(x) ((x) << 12) +#define PKR_YSEL_MASK (0x3 << 12) +#define SC_MAP(x) ((x) << 16) +#define SC_MAP_MASK (0x3 << 16) +#define SC_XSEL(x) ((x) << 18) +#define SC_XSEL_MASK (0x3 << 18) +#define SC_YSEL(x) ((x) << 20) +#define SC_YSEL_MASK (0x3 << 20) +#define SE_MAP(x) ((x) << 24) +#define SE_MAP_MASK (0x3 << 24) +#define SE_XSEL(x) ((x) << 26) +#define SE_XSEL_MASK (0x3 << 26) +#define SE_YSEL(x) ((x) << 28) +#define SE_YSEL_MASK (0x3 << 28) + +/* mmPA_SC_RASTER_CONFIG_1 mask */ +#define SE_PAIR_MAP(x) ((x) << 0) +#define SE_PAIR_MAP_MASK (0x3 << 0) +#define SE_PAIR_XSEL(x) ((x) << 2) +#define SE_PAIR_XSEL_MASK (0x3 << 2) +#define SE_PAIR_YSEL(x) ((x) << 4) +#define SE_PAIR_YSEL_MASK (0x3 << 4) + #endif diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c index 90102f123bb8..32a676291e67 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c @@ -1645,6 +1645,147 @@ static u32 gfx_v7_0_get_rb_active_bitmap(struct amdgpu_device *adev) return (~data) & mask; } +static void +gfx_v7_0_raster_config(struct amdgpu_device *adev, u32 *rconf, u32 *rconf1) +{ + switch (adev->asic_type) { + case CHIP_BONAIRE: + *rconf |= RB_MAP_PKR0(2) | RB_XSEL2(1) | SE_MAP(2) | + SE_XSEL(1) | SE_YSEL(1); + *rconf1 |= 0x0; + break; + case CHIP_HAWAII: + *rconf |= RB_MAP_PKR0(2) | RB_MAP_PKR1(2) | + RB_XSEL2(1) | PKR_MAP(2) | PKR_XSEL(1) | + PKR_YSEL(1) | SE_MAP(2) | SE_XSEL(2) | + SE_YSEL(3); + *rconf1 |= SE_PAIR_MAP(2) | SE_PAIR_XSEL(3) | + SE_PAIR_YSEL(2); + break; + case CHIP_KAVERI: + *rconf |= RB_MAP_PKR0(2); + *rconf1 |= 0x0; + break; + case CHIP_KABINI: + case CHIP_MULLINS: + *rconf |= 0x0; + *rconf1 |= 0x0; + break; + default: + DRM_ERROR("unknown asic: 0x%x\n", adev->asic_type); + break; + } +} + +static void +gfx_v7_0_write_harvested_raster_configs(struct amdgpu_device *adev, + u32 raster_config, u32 raster_config_1, + unsigned rb_mask, unsigned num_rb) +{ + unsigned sh_per_se = max_t(unsigned, adev->gfx.config.max_sh_per_se, 1); + unsigned num_se = max_t(unsigned, adev->gfx.config.max_shader_engines, 1); + unsigned rb_per_pkr = min_t(unsigned, num_rb / num_se / sh_per_se, 2); + unsigned rb_per_se = num_rb / num_se; + unsigned se_mask[4]; + unsigned se; + + se_mask[0] = ((1 << rb_per_se) - 1) & rb_mask; + se_mask[1] = (se_mask[0] << rb_per_se) & rb_mask; + se_mask[2] = (se_mask[1] << rb_per_se) & rb_mask; + se_mask[3] = (se_mask[2] << rb_per_se) & rb_mask; + + WARN_ON(!(num_se == 1 || num_se == 2 || num_se == 4)); + WARN_ON(!(sh_per_se == 1 || sh_per_se == 2)); + WARN_ON(!(rb_per_pkr == 1 || rb_per_pkr == 2)); + + if ((num_se > 2) && ((!se_mask[0] && !se_mask[1]) || + (!se_mask[2] && !se_mask[3]))) { + raster_config_1 &= ~SE_PAIR_MAP_MASK; + + if (!se_mask[0] && !se_mask[1]) { + raster_config_1 |= + SE_PAIR_MAP(RASTER_CONFIG_SE_PAIR_MAP_3); + } else { + raster_config_1 |= + SE_PAIR_MAP(RASTER_CONFIG_SE_PAIR_MAP_0); + } + } + + for (se = 0; se < num_se; se++) { + unsigned raster_config_se = raster_config; + unsigned pkr0_mask = ((1 << rb_per_pkr) - 1) << (se * rb_per_se); + unsigned pkr1_mask = pkr0_mask << rb_per_pkr; + int idx = (se / 2) * 2; + + if ((num_se > 1) && (!se_mask[idx] || !se_mask[idx + 1])) { + raster_config_se &= ~SE_MAP_MASK; + + if (!se_mask[idx]) { + raster_config_se |= SE_MAP(RASTER_CONFIG_SE_MAP_3); + } else { + raster_config_se |= SE_MAP(RASTER_CONFIG_SE_MAP_0); + } + } + + pkr0_mask &= rb_mask; + pkr1_mask &= rb_mask; + if (rb_per_se > 2 && (!pkr0_mask || !pkr1_mask)) { + raster_config_se &= ~PKR_MAP_MASK; + + if (!pkr0_mask) { + raster_config_se |= PKR_MAP(RASTER_CONFIG_PKR_MAP_3); + } else { + raster_config_se |= PKR_MAP(RASTER_CONFIG_PKR_MAP_0); + } + } + + if (rb_per_se >= 2) { + unsigned rb0_mask = 1 << (se * rb_per_se); + unsigned rb1_mask = rb0_mask << 1; + + rb0_mask &= rb_mask; + rb1_mask &= rb_mask; + if (!rb0_mask || !rb1_mask) { + raster_config_se &= ~RB_MAP_PKR0_MASK; + + if (!rb0_mask) { + raster_config_se |= + RB_MAP_PKR0(RASTER_CONFIG_RB_MAP_3); + } else { + raster_config_se |= + RB_MAP_PKR0(RASTER_CONFIG_RB_MAP_0); + } + } + + if (rb_per_se > 2) { + rb0_mask = 1 << (se * rb_per_se + rb_per_pkr); + rb1_mask = rb0_mask << 1; + rb0_mask &= rb_mask; + rb1_mask &= rb_mask; + if (!rb0_mask || !rb1_mask) { + raster_config_se &= ~RB_MAP_PKR1_MASK; + + if (!rb0_mask) { + raster_config_se |= + RB_MAP_PKR1(RASTER_CONFIG_RB_MAP_3); + } else { + raster_config_se |= + RB_MAP_PKR1(RASTER_CONFIG_RB_MAP_0); + } + } + } + } + + /* GRBM_GFX_INDEX has a different offset on CI+ */ + gfx_v7_0_select_se_sh(adev, se, 0xffffffff, 0xffffffff); + WREG32(mmPA_SC_RASTER_CONFIG, raster_config_se); + WREG32(mmPA_SC_RASTER_CONFIG_1, raster_config_1); + } + + /* GRBM_GFX_INDEX has a different offset on CI+ */ + gfx_v7_0_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff); +} + /** * gfx_v7_0_setup_rb - setup the RBs on the asic * @@ -1658,9 +1799,11 @@ static void gfx_v7_0_setup_rb(struct amdgpu_device *adev) { int i, j; u32 data; + u32 raster_config = 0, raster_config_1 = 0; u32 active_rbs = 0; u32 rb_bitmap_width_per_sh = adev->gfx.config.max_backends_per_se / adev->gfx.config.max_sh_per_se; + unsigned num_rb_pipes; mutex_lock(&adev->grbm_idx_mutex); for (i = 0; i < adev->gfx.config.max_shader_engines; i++) { @@ -1672,10 +1815,25 @@ static void gfx_v7_0_setup_rb(struct amdgpu_device *adev) } } gfx_v7_0_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff); - mutex_unlock(&adev->grbm_idx_mutex); adev->gfx.config.backend_enable_mask = active_rbs; adev->gfx.config.num_rbs = hweight32(active_rbs); + + num_rb_pipes = min_t(unsigned, adev->gfx.config.max_backends_per_se * + adev->gfx.config.max_shader_engines, 16); + + gfx_v7_0_raster_config(adev, &raster_config, &raster_config_1); + + if (!adev->gfx.config.backend_enable_mask || + adev->gfx.config.num_rbs >= num_rb_pipes) { + WREG32(mmPA_SC_RASTER_CONFIG, raster_config); + WREG32(mmPA_SC_RASTER_CONFIG_1, raster_config_1); + } else { + gfx_v7_0_write_harvested_raster_configs(adev, raster_config, raster_config_1, + adev->gfx.config.backend_enable_mask, + num_rb_pipes); + } + mutex_unlock(&adev->grbm_idx_mutex); } /** -- 2.20.1