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radv,gallium: Add driconf option to reduce advertised VRAM size.

Browse source 
To help debugging games that actually do active memory budget
management.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6641>
This commit is contained in:
Bas Nieuwenhuizen 2020-09-08 02:02:09 +02:00 • committed by Marge Bot
parent cc431f48f9
commit cf2eebdf4f
4 changed files with 27 additions and 5 deletions
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19
src/amd/vulkan/radv_device.c
View file

@ -127,16 +127,26 @@ radv_get_device_uuid(struct radeon_info *info, void *uuid)
ac_compute_device_uuid(info, uuid, VK_UUID_SIZE);
}
static uint64_t
radv_get_adjusted_vram_size(struct radv_physical_device *device)
{
int ov = driQueryOptioni(&device->instance->dri_options,
"override_vram_size");
if (ov >= 0)
return MIN2(device->rad_info.vram_size, (uint64_t)ov << 20);
return device->rad_info.vram_size;
}
static uint64_t
radv_get_visible_vram_size(struct radv_physical_device *device)
{
return MIN2(device->rad_info.vram_size, device->rad_info.vram_vis_size);
return MIN2(radv_get_adjusted_vram_size(device) , device->rad_info.vram_vis_size);
}
static uint64_t
radv_get_vram_size(struct radv_physical_device *device)
{
return device->rad_info.vram_size - radv_get_visible_vram_size(device);
return radv_get_adjusted_vram_size(device) - device->rad_info.vram_vis_size;
}
static void
@ -609,6 +619,7 @@ DRI_CONF_BEGIN
DRI_CONF_SECTION_END
DRI_CONF_SECTION_DEBUG
DRI_CONF_OVERRIDE_VRAM_SIZE()
DRI_CONF_VK_WSI_FORCE_BGRA8_UNORM_FIRST("false")
DRI_CONF_SECTION_END
DRI_CONF_END;
@ -2195,7 +2206,7 @@ radv_get_memory_budget_properties(VkPhysicalDevice physicalDevice,
RADEON_ALLOCATED_VRAM);
heap_budget = vram_size -
device->ws->query_value(device->ws, RADEON_VRAM_USAGE) +
MIN2(vram_size, device->ws->query_value(device->ws, RADEON_VRAM_USAGE)) +
heap_usage;
memoryBudget->heapBudget[heap_index] = heap_budget;
@ -2205,7 +2216,7 @@ radv_get_memory_budget_properties(VkPhysicalDevice physicalDevice,
RADEON_ALLOCATED_VRAM_VIS);
heap_budget = visible_vram_size -
device->ws->query_value(device->ws, RADEON_VRAM_VIS_USAGE) +
MIN2(visible_vram_size, device->ws->query_value(device->ws, RADEON_VRAM_VIS_USAGE)) +
heap_usage;
memoryBudget->heapBudget[heap_index] = heap_budget;

1
src/gallium/auxiliary/pipe-loader/driinfo_gallium.h
View file

@ -35,6 +35,7 @@ DRI_CONF_SECTION_DEBUG
DRI_CONF_ALLOW_DRAW_OUT_OF_ORDER("false")
DRI_CONF_FORCE_COMPAT_PROFILE("false")
DRI_CONF_FORCE_GL_VENDOR()
DRI_CONF_OVERRIDE_VRAM_SIZE()
DRI_CONF_SECTION_END
DRI_CONF_SECTION_MISCELLANEOUS

7
src/gallium/frontends/dri/dri_query_renderer.c
View file

@ -6,6 +6,7 @@
#include "utils.h"
#include "dri_screen.h"
#include "dri_query_renderer.h"
#include "pipe-loader/pipe_loader.h"
static int
dri2_query_renderer_integer(__DRIscreen *_screen, int param,
@ -30,11 +31,15 @@ dri2_query_renderer_integer(__DRIscreen *_screen, int param,
PIPE_CAP_ACCELERATED);
return 0;
case __DRI2_RENDERER_VIDEO_MEMORY:
case __DRI2_RENDERER_VIDEO_MEMORY: {
int ov = driQueryOptioni(&screen->dev->option_cache, "override_vram_size");
value[0] =
(unsigned int)screen->base.screen->get_param(screen->base.screen,
PIPE_CAP_VIDEO_MEMORY);
if (ov >= 0)
value[0] = MIN2(ov, value[0]);
return 0;
}
case __DRI2_RENDERER_UNIFIED_MEMORY_ARCHITECTURE:
value[0] =

5
src/util/driconf.h
View file

@ -222,6 +222,11 @@ DRI_CONF_OPT_BEGIN_B(force_compat_profile, def) \
DRI_CONF_DESC("Force an OpenGL compatibility context") \
DRI_CONF_OPT_END
#define DRI_CONF_OVERRIDE_VRAM_SIZE() \
DRI_CONF_OPT_BEGIN_V(override_vram_size, int, -1, "-1:2147483647") \
DRI_CONF_DESC("Override the VRAM size advertised to the application in MiB (-1 = default)") \
DRI_CONF_OPT_END
/**
* \brief Image quality-related options
*/