[AMD Public Use] Reviewed-by: Hawking Zhang <[email protected]>
Regards, Hawking -----Original Message----- From: Sheng, Wenhui <[email protected]> Sent: Wednesday, June 24, 2020 22:35 To: [email protected] Cc: Zhang, Hawking <[email protected]>; Sheng, Wenhui <[email protected]> Subject: [PATCH] drm/amdgpu: reduce ip discovery data reading size From: Wenhui Sheng <[email protected]> Only read first 4K data instead of whole TMR block, so we can reduce the time in full access mode. Signed-off-by: Wenhui Sheng <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c index b5d6274952a5..82c048766745 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c @@ -133,7 +133,7 @@ static int hw_id_map[MAX_HWIP] = { static int amdgpu_discovery_read_binary(struct amdgpu_device *adev, uint8_t *binary) { uint64_t vram_size = (uint64_t)RREG32(mmRCC_CONFIG_MEMSIZE) << 20; - uint64_t pos = vram_size - adev->discovery_tmr_size; + uint64_t pos = vram_size - DISCOVERY_TMR_OFFSET; amdgpu_device_vram_access(adev, pos, (uint32_t *)binary, adev->discovery_tmr_size, false); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h index d50d597c45ed..8f6183801cb3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h @@ -24,7 +24,8 @@ #ifndef __AMDGPU_DISCOVERY__ #define __AMDGPU_DISCOVERY__ -#define DISCOVERY_TMR_SIZE (64 << 10) +#define DISCOVERY_TMR_SIZE (4 << 10) +#define DISCOVERY_TMR_OFFSET (64 << 10) void amdgpu_discovery_fini(struct amdgpu_device *adev); int amdgpu_discovery_reg_base_init(struct amdgpu_device *adev); -- 2.17.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
