Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com> Regards, Hawking -----Original Message----- From: Flora Cui [mailto:Flora.Cui@xxxxxxx] Sent: Tuesday, February 07, 2017 16:14 To: Zhang, Hawking <Hawking.Zhang at amd.com>; amd-gfx at lists.freedesktop.org Cc: Cui, Flora <Flora.Cui at amd.com> Subject: [PATCH 1/7] drm/amdgpu/gfx6: clean up rb configuration Change-Id: Iab06288ba350c44caa06fb11c2e4ee9c90cd05a6 Signed-off-by: Flora Cui <Flora.Cui at amd.com> --- drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c | 101 ++++++++++++++-------------------- 1 file changed, 42 insertions(+), 59 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c index db12955..7f5b210 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c @@ -1325,21 +1325,19 @@ static u32 gfx_v6_0_create_bitmask(u32 bit_width) return (u32)(((u64)1 << bit_width) - 1); } -static u32 gfx_v6_0_get_rb_disabled(struct amdgpu_device *adev, - u32 max_rb_num_per_se, - u32 sh_per_se) +static u32 gfx_v6_0_get_rb_active_bitmap(struct amdgpu_device *adev) { u32 data, mask; - data = RREG32(mmCC_RB_BACKEND_DISABLE); - data &= CC_RB_BACKEND_DISABLE__BACKEND_DISABLE_MASK; - data |= RREG32(mmGC_USER_RB_BACKEND_DISABLE); + data = RREG32(mmCC_RB_BACKEND_DISABLE) | + RREG32(mmGC_USER_RB_BACKEND_DISABLE); - data >>= CC_RB_BACKEND_DISABLE__BACKEND_DISABLE__SHIFT; + data = REG_GET_FIELD(data, GC_USER_RB_BACKEND_DISABLE, +BACKEND_DISABLE); - mask = gfx_v6_0_create_bitmask(max_rb_num_per_se / sh_per_se); + mask = gfx_v6_0_create_bitmask(adev->gfx.config.max_backends_per_se/ + adev->gfx.config.max_sh_per_se); - return data & mask; + return ~data & mask; } static void gfx_v6_0_raster_config(struct amdgpu_device *adev, u32 *rconf) @@ -1468,68 +1466,55 @@ static void gfx_v6_0_write_harvested_raster_configs(struct amdgpu_device *adev, gfx_v6_0_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff); } -static void gfx_v6_0_setup_rb(struct amdgpu_device *adev, - u32 se_num, u32 sh_per_se, - u32 max_rb_num_per_se) +static void gfx_v6_0_setup_rb(struct amdgpu_device *adev) { int i, j; - u32 data, mask; - u32 disabled_rbs = 0; - u32 enabled_rbs = 0; + u32 data; + u32 raster_config = 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 < se_num; i++) { - for (j = 0; j < sh_per_se; j++) { + for (i = 0; i < adev->gfx.config.max_shader_engines; i++) { + for (j = 0; j < adev->gfx.config.max_sh_per_se; j++) { gfx_v6_0_select_se_sh(adev, i, j, 0xffffffff); - data = gfx_v6_0_get_rb_disabled(adev, max_rb_num_per_se, sh_per_se); - disabled_rbs |= data << ((i * sh_per_se + j) * 2); + data = gfx_v6_0_get_rb_active_bitmap(adev); + active_rbs |= data << ((i * adev->gfx.config.max_sh_per_se + j) * + rb_bitmap_width_per_sh); } } gfx_v6_0_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff); - mutex_unlock(&adev->grbm_idx_mutex); - mask = 1; - for (i = 0; i < max_rb_num_per_se * se_num; i++) { - if (!(disabled_rbs & mask)) - enabled_rbs |= mask; - mask <<= 1; - } - - adev->gfx.config.backend_enable_mask = enabled_rbs; - adev->gfx.config.num_rbs = hweight32(enabled_rbs); + 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); - mutex_lock(&adev->grbm_idx_mutex); - for (i = 0; i < se_num; i++) { - gfx_v6_0_select_se_sh(adev, i, 0xffffffff, 0xffffffff); - data = 0; - for (j = 0; j < sh_per_se; j++) { - switch (enabled_rbs & 3) { - case 1: - data |= (RASTER_CONFIG_RB_MAP_0 << (i * sh_per_se + j) * 2); - break; - case 2: - data |= (RASTER_CONFIG_RB_MAP_3 << (i * sh_per_se + j) * 2); - break; - case 3: - default: - data |= (RASTER_CONFIG_RB_MAP_2 << (i * sh_per_se + j) * 2); - break; - } - enabled_rbs >>= 2; - } - gfx_v6_0_raster_config(adev, &data); + gfx_v6_0_raster_config(adev, &raster_config); - if (!adev->gfx.config.backend_enable_mask || - adev->gfx.config.num_rbs >= num_rb_pipes) - WREG32(mmPA_SC_RASTER_CONFIG, data); - else - gfx_v6_0_write_harvested_raster_configs(adev, data, - adev->gfx.config.backend_enable_mask, - num_rb_pipes); + if (!adev->gfx.config.backend_enable_mask || + adev->gfx.config.num_rbs >= num_rb_pipes) { + WREG32(mmPA_SC_RASTER_CONFIG, raster_config); + } else { + gfx_v6_0_write_harvested_raster_configs(adev, raster_config, + adev->gfx.config.backend_enable_mask, + num_rb_pipes); + } + + /* cache the values for userspace */ + for (i = 0; i < adev->gfx.config.max_shader_engines; i++) { + for (j = 0; j < adev->gfx.config.max_sh_per_se; j++) { + gfx_v6_0_select_se_sh(adev, i, j, 0xffffffff); + adev->gfx.config.rb_config[i][j].rb_backend_disable = + RREG32(mmCC_RB_BACKEND_DISABLE); + adev->gfx.config.rb_config[i][j].user_rb_backend_disable = + RREG32(mmGC_USER_RB_BACKEND_DISABLE); + adev->gfx.config.rb_config[i][j].raster_config = + RREG32(mmPA_SC_RASTER_CONFIG); + } } gfx_v6_0_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff); mutex_unlock(&adev->grbm_idx_mutex); @@ -1735,9 +1720,7 @@ static void gfx_v6_0_gpu_init(struct amdgpu_device *adev) #endif gfx_v6_0_tiling_mode_table_init(adev); - gfx_v6_0_setup_rb(adev, adev->gfx.config.max_shader_engines, - adev->gfx.config.max_sh_per_se, - adev->gfx.config.max_backends_per_se); + gfx_v6_0_setup_rb(adev); gfx_v6_0_setup_spi(adev, adev->gfx.config.max_shader_engines, adev->gfx.config.max_sh_per_se, -- 2.7.4
