From: Ben Goz ben.goz@amd.com
v2: add missing MTYPE_NONCACHED enum
Signed-off-by: Ben Goz ben.goz@amd.com Acked-by: Oded Gabbay oded.gabbay@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com --- drivers/gpu/drm/amd/amdgpu/cikd.h | 6 +++++ drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 42 ++++++++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 47 ++++++++++++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 28 ++++++++++++++++++++ 4 files changed, 123 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/cikd.h b/drivers/gpu/drm/amd/amdgpu/cikd.h index 220865a..d19085a 100644 --- a/drivers/gpu/drm/amd/amdgpu/cikd.h +++ b/drivers/gpu/drm/amd/amdgpu/cikd.h @@ -552,4 +552,10 @@ #define VCE_CMD_IB_AUTO 0x00000005 #define VCE_CMD_SEMAPHORE 0x00000006
+/* valid for both DEFAULT_MTYPE and APE1_MTYPE */ +enum { + MTYPE_CACHED = 0, + MTYPE_NONCACHED = 3 +}; + #endif diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c index cb790744..2c188fb 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c @@ -2010,6 +2010,46 @@ static void gfx_v7_0_setup_rb(struct amdgpu_device *adev, }
/** + * gmc_v7_0_init_compute_vmid - gart enable + * + * @rdev: amdgpu_device pointer + * + * Initialize compute vmid sh_mem registers + * + */ +#define DEFAULT_SH_MEM_BASES (0x6000) +#define FIRST_COMPUTE_VMID (8) +#define LAST_COMPUTE_VMID (16) +static void gmc_v7_0_init_compute_vmid(struct amdgpu_device *adev) +{ + int i; + uint32_t sh_mem_config; + uint32_t sh_mem_bases; + + /* + * Configure apertures: + * LDS: 0x60000000'00000000 - 0x60000001'00000000 (4GB) + * Scratch: 0x60000001'00000000 - 0x60000002'00000000 (4GB) + * GPUVM: 0x60010000'00000000 - 0x60020000'00000000 (1TB) + */ + sh_mem_bases = DEFAULT_SH_MEM_BASES | (DEFAULT_SH_MEM_BASES << 16); + sh_mem_config = SH_MEM_ALIGNMENT_MODE_UNALIGNED << + SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT; + sh_mem_config |= MTYPE_NONCACHED << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT; + mutex_lock(&adev->srbm_mutex); + for (i = FIRST_COMPUTE_VMID; i < LAST_COMPUTE_VMID; i++) { + cik_srbm_select(adev, 0, 0, 0, i); + /* CP and shaders */ + WREG32(mmSH_MEM_CONFIG, sh_mem_config); + WREG32(mmSH_MEM_APE1_BASE, 1); + WREG32(mmSH_MEM_APE1_LIMIT, 0); + WREG32(mmSH_MEM_BASES, sh_mem_bases); + } + cik_srbm_select(adev, 0, 0, 0, 0); + mutex_unlock(&adev->srbm_mutex); +} + +/** * gfx_v7_0_gpu_init - setup the 3D engine * * @adev: amdgpu_device pointer @@ -2230,6 +2270,8 @@ static void gfx_v7_0_gpu_init(struct amdgpu_device *adev) cik_srbm_select(adev, 0, 0, 0, 0); mutex_unlock(&adev->srbm_mutex);
+ gmc_v7_0_init_compute_vmid(adev); + WREG32(mmSX_DEBUG_1, 0x20);
WREG32(mmTA_CNTL_AUX, 0x00010000); diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index 14242bd..e4aeb74 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -1894,6 +1894,51 @@ static void gfx_v8_0_setup_rb(struct amdgpu_device *adev, mutex_unlock(&adev->grbm_idx_mutex); }
+/** + * gmc_v8_0_init_compute_vmid - gart enable + * + * @rdev: amdgpu_device pointer + * + * Initialize compute vmid sh_mem registers + * + */ +#define DEFAULT_SH_MEM_BASES (0x6000) +#define FIRST_COMPUTE_VMID (8) +#define LAST_COMPUTE_VMID (16) +static void gmc_v8_0_init_compute_vmid(struct amdgpu_device *adev) +{ + int i; + uint32_t sh_mem_config; + uint32_t sh_mem_bases; + + /* + * Configure apertures: + * LDS: 0x60000000'00000000 - 0x60000001'00000000 (4GB) + * Scratch: 0x60000001'00000000 - 0x60000002'00000000 (4GB) + * GPUVM: 0x60010000'00000000 - 0x60020000'00000000 (1TB) + */ + sh_mem_bases = DEFAULT_SH_MEM_BASES | (DEFAULT_SH_MEM_BASES << 16); + + sh_mem_config = SH_MEM_ADDRESS_MODE_HSA64 << + SH_MEM_CONFIG__ADDRESS_MODE__SHIFT | + SH_MEM_ALIGNMENT_MODE_UNALIGNED << + SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT | + MTYPE_CC << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT | + SH_MEM_CONFIG__PRIVATE_ATC_MASK; + + mutex_lock(&adev->srbm_mutex); + for (i = FIRST_COMPUTE_VMID; i < LAST_COMPUTE_VMID; i++) { + vi_srbm_select(adev, 0, 0, 0, i); + /* CP and shaders */ + WREG32(mmSH_MEM_CONFIG, sh_mem_config); + WREG32(mmSH_MEM_APE1_BASE, 1); + WREG32(mmSH_MEM_APE1_LIMIT, 0); + WREG32(mmSH_MEM_BASES, sh_mem_bases); + } + vi_srbm_select(adev, 0, 0, 0, 0); + mutex_unlock(&adev->srbm_mutex); +} + static void gfx_v8_0_gpu_init(struct amdgpu_device *adev) { u32 gb_addr_config; @@ -2113,6 +2158,8 @@ static void gfx_v8_0_gpu_init(struct amdgpu_device *adev) vi_srbm_select(adev, 0, 0, 0, 0); mutex_unlock(&adev->srbm_mutex);
+ gmc_v8_0_init_compute_vmid(adev); + mutex_lock(&adev->grbm_idx_mutex); /* * making sure that the following register writes will be broadcasted diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c index e3c1fde..7bb37b9 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c @@ -439,6 +439,31 @@ static void sdma_v3_0_rlc_stop(struct amdgpu_device *adev) }
/** + * sdma_v3_0_ctx_switch_enable - stop the async dma engines context switch + * + * @adev: amdgpu_device pointer + * @enable: enable/disable the DMA MEs context switch. + * + * Halt or unhalt the async dma engines context switch (VI). + */ +static void sdma_v3_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable) +{ + u32 f32_cntl; + int i; + + for (i = 0; i < SDMA_MAX_INSTANCE; i++) { + f32_cntl = RREG32(mmSDMA0_CNTL + sdma_offsets[i]); + if (enable) + f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, + AUTO_CTXSW_ENABLE, 1); + else + f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL, + AUTO_CTXSW_ENABLE, 0); + WREG32(mmSDMA0_CNTL + sdma_offsets[i], f32_cntl); + } +} + +/** * sdma_v3_0_enable - stop the async dma engines * * @adev: amdgpu_device pointer @@ -648,6 +673,8 @@ static int sdma_v3_0_start(struct amdgpu_device *adev)
/* unhalt the MEs */ sdma_v3_0_enable(adev, true); + /* enable sdma ring preemption */ + sdma_v3_0_ctx_switch_enable(adev, true);
/* start the gfx rings and rlc compute queues */ r = sdma_v3_0_gfx_resume(adev); @@ -1079,6 +1106,7 @@ static int sdma_v3_0_hw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ sdma_v3_0_ctx_switch_enable(adev, false); sdma_v3_0_enable(adev, false);
return 0;