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Commit e0adf6c8 authored by Junwei Zhang's avatar Junwei Zhang Committed by Alex Deucher
Browse files

drm/amd/amdgpu: unify memory query info interface 



Signed-off-by: default avatarJunwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: default avatarMarek Olšák <marek.olsak@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 6a7f76e7

drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c

+28 −26
Original line number Diff line number Diff line
@@ -411,32 +411,34 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file 
		return copy_to_user(out, &vram_gtt,

				    min((size_t)size, sizeof(vram_gtt))) ? -EFAULT : 0;

	}

	case AMDGPU_INFO_VRAM_GTT_TOTAL: {

		struct drm_amdgpu_info_vram_gtt_total vram_gtt_total;



		vram_gtt_total.vram_total_size = adev->mc.real_vram_size;

		vram_gtt_total.vram_cpu_accessible_total_size = adev->mc.visible_vram_size;

		vram_gtt_total.gtt_total_size = adev->mc.gtt_size;

		return copy_to_user(out, &vram_gtt_total,

				    min((size_t)size, sizeof(vram_gtt_total)))

				    ? -EFAULT : 0;

	}

	case AMDGPU_INFO_VRAM_GTT_MAX: {

		struct drm_amdgpu_info_vram_gtt_max vram_gtt_max;

		u64 max_size;



		max_size = adev->mc.real_vram_size - adev->vram_pin_size;

		vram_gtt_max.vram_max_size = max_size * 3 / 4;



		max_size = adev->mc.visible_vram_size - (adev->vram_pin_size -

				adev->invisible_pin_size);

		vram_gtt_max.vram_cpu_accessible_max_size = max_size * 3 / 4;



		max_size = adev->mc.gtt_size - adev->gart_pin_size;

		vram_gtt_max.gtt_max_size = max_size * 3 / 4;



		return copy_to_user(out, &vram_gtt_max,

				    min((size_t)size, sizeof(vram_gtt_max)))

	case AMDGPU_INFO_MEMORY: {

		struct drm_amdgpu_memory_info mem;



		memset(&mem, 0, sizeof(mem));

		mem.vram.total_heap_size = adev->mc.real_vram_size;

		mem.vram.usable_heap_size =

			adev->mc.real_vram_size - adev->vram_pin_size;

		mem.vram.heap_usage = atomic64_read(&adev->vram_usage);

		mem.vram.max_allocation = mem.vram.usable_heap_size * 3 / 4;



		mem.cpu_accessible_vram.total_heap_size =

			adev->mc.visible_vram_size;

		mem.cpu_accessible_vram.usable_heap_size =

			adev->mc.visible_vram_size -

			(adev->vram_pin_size - adev->invisible_pin_size);

		mem.cpu_accessible_vram.heap_usage =

			atomic64_read(&adev->vram_vis_usage);

		mem.cpu_accessible_vram.max_allocation =

			mem.cpu_accessible_vram.usable_heap_size * 3 / 4;



		mem.gtt.total_heap_size = adev->mc.gtt_size;

		mem.gtt.usable_heap_size =

			adev->mc.gtt_size - adev->gart_pin_size;

		mem.gtt.heap_usage = atomic64_read(&adev->gtt_usage);

		mem.gtt.max_allocation = mem.gtt.usable_heap_size * 3 / 4;



		return copy_to_user(out, &mem,

				    min((size_t)size, sizeof(mem)))

				    ? -EFAULT : 0;

	}

	case AMDGPU_INFO_READ_MMR_REG: {

include/uapi/drm/amdgpu_drm.h

+26 −12
Original line number Diff line number Diff line
@@ -489,10 +489,8 @@ struct drm_amdgpu_cs_chunk_data { 
#define AMDGPU_INFO_VIS_VRAM_USAGE		0x17

/* number of TTM buffer evictions */

#define AMDGPU_INFO_NUM_EVICTIONS		0x18

/* Query the total size of VRAM and GTT domains */

#define AMDGPU_INFO_VRAM_GTT_TOTAL		0x19

/* Query the max allocation size of VRAM and GTT domains */

#define AMDGPU_INFO_VRAM_GTT_MAX		0x1a

/* Query memory about VRAM and GTT domains */

#define AMDGPU_INFO_MEMORY			0x19



#define AMDGPU_INFO_MMR_SE_INDEX_SHIFT	0

#define AMDGPU_INFO_MMR_SE_INDEX_MASK	0xff
@@ -578,16 +576,32 @@ struct drm_amdgpu_info_vram_gtt { 
	__u64 gtt_size;

};



struct drm_amdgpu_info_vram_gtt_total {

	__u64 vram_total_size;

	__u64 vram_cpu_accessible_total_size;

	__u64 gtt_total_size;

struct drm_amdgpu_heap_info {

	/** max. physical memory */

	__u64 total_heap_size;



	/** Theoretical max. available memory in the given heap */

	__u64 usable_heap_size;



	/**

	 * Number of bytes allocated in the heap. This includes all processes

	 * and private allocations in the kernel. It changes when new buffers

	 * are allocated, freed, and moved. It cannot be larger than

	 * heap_size.

	 */

	__u64 heap_usage;



	/**

	 * Theoretical possible max. size of buffer which

	 * could be allocated in the given heap

	 */

	__u64 max_allocation;

};



struct drm_amdgpu_info_vram_gtt_max {

	__u64 vram_max_size;

	__u64 vram_cpu_accessible_max_size;

	__u64 gtt_max_size;

struct drm_amdgpu_memory_info {

	struct drm_amdgpu_heap_info vram;

	struct drm_amdgpu_heap_info cpu_accessible_vram;

	struct drm_amdgpu_heap_info gtt;

};



struct drm_amdgpu_info_firmware {