From 397a270effb01ee938a441327ae6dee732e8f653 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 14 Mar 2016 16:51:24 -0400 Subject: [PATCH] drm/amdgpu: add an interface to get gfx constants from atombios Fetch the values from atom rather than hardcoding them in the driver. Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 30 ++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h | 2 ++ 2 files changed, 32 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c index 3b469eab31a9..9df1bcb35bf0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c @@ -684,6 +684,36 @@ int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev) return ret; } +union gfx_info { + ATOM_GFX_INFO_V2_1 info; +}; + +int amdgpu_atombios_get_gfx_info(struct amdgpu_device *adev) +{ + struct amdgpu_mode_info *mode_info = &adev->mode_info; + int index = GetIndexIntoMasterTable(DATA, GFX_Info); + uint8_t frev, crev; + uint16_t data_offset; + int ret = -EINVAL; + + if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL, + &frev, &crev, &data_offset)) { + union gfx_info *gfx_info = (union gfx_info *) + (mode_info->atom_context->bios + data_offset); + + adev->gfx.config.max_shader_engines = gfx_info->info.max_shader_engines; + adev->gfx.config.max_tile_pipes = gfx_info->info.max_tile_pipes; + adev->gfx.config.max_cu_per_sh = gfx_info->info.max_cu_per_sh; + adev->gfx.config.max_sh_per_se = gfx_info->info.max_sh_per_se; + adev->gfx.config.max_backends_per_se = gfx_info->info.max_backends_per_se; + adev->gfx.config.max_texture_channel_caches = + gfx_info->info.max_texture_channel_caches; + + ret = 0; + } + return ret; +} + union igp_info { struct _ATOM_INTEGRATED_SYSTEM_INFO info; struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h index 9e1442053fe4..8c2e69661799 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h @@ -144,6 +144,8 @@ bool amdgpu_atombios_get_connector_info_from_object_table(struct amdgpu_device * int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev); +int amdgpu_atombios_get_gfx_info(struct amdgpu_device *adev); + bool amdgpu_atombios_get_asic_ss_info(struct amdgpu_device *adev, struct amdgpu_atom_ss *ss, int id, u32 clock); -- 2.30.2