diff options
| author | Thomas Hellstrom <thellstrom@vmware.com> | 2018-03-22 12:15:23 +0300 |
|---|---|---|
| committer | Thomas Hellstrom <thellstrom@vmware.com> | 2018-03-22 14:08:23 +0300 |
| commit | dc366364c4ef809dccd063919314301f8ba01ac2 (patch) | |
| tree | 08090face26346c75e35b37d53d175d7c95ff9b4 /drivers/gpu/drm/vmwgfx/device_include | |
| parent | ef86cfee7d74baf2e3b883871087a684acecb595 (diff) | |
| download | linux-dc366364c4ef809dccd063919314301f8ba01ac2.tar.xz | |
drm/vmwgfx: Fix multiple command buffer context use
The start / stop and preempt commands don't honor the context argument
but rather acts on all available contexts.
Also add detection for context 1 availability.
Note that currently there's no driver interface for submitting buffers
using the high-priority command queue (context 1).
Testing done:
Change the default context for command submission to 1 instead of 0,
verify basic desktop functionality including faulty command injection and
recovery.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Deepak Rawat <drawat@vmware.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/device_include')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/device_include/svga_reg.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/device_include/svga_reg.h b/drivers/gpu/drm/vmwgfx/device_include/svga_reg.h index 6e0ccb70a700..88e72bf9a534 100644 --- a/drivers/gpu/drm/vmwgfx/device_include/svga_reg.h +++ b/drivers/gpu/drm/vmwgfx/device_include/svga_reg.h @@ -372,6 +372,14 @@ SVGAGuestPtr; * PA, not biased by the offset. When the command buffer is finished * the guest should not read the offset field as there is no guarantee * what it will set to. + * + * When the SVGA_CAP_HP_CMD_QUEUE cap bit is set a new command queue + * SVGA_CB_CONTEXT_1 is available. Commands submitted to this queue + * will be executed as quickly as possible by the SVGA device + * potentially before already queued commands on SVGA_CB_CONTEXT_0. + * The SVGA device guarantees that any command buffers submitted to + * SVGA_CB_CONTEXT_0 will be executed after any _already_ submitted + * command buffers to SVGA_CB_CONTEXT_1. */ #define SVGA_CB_MAX_SIZE (512 * 1024) /* 512 KB */ @@ -382,7 +390,8 @@ SVGAGuestPtr; typedef enum { SVGA_CB_CONTEXT_DEVICE = 0x3f, SVGA_CB_CONTEXT_0 = 0x0, - SVGA_CB_CONTEXT_MAX = 0x1, + SVGA_CB_CONTEXT_1 = 0x1, /* Supported with SVGA_CAP_HP_CMD_QUEUE */ + SVGA_CB_CONTEXT_MAX = 0x2, } SVGACBContext; @@ -689,6 +698,7 @@ SVGASignedPoint; #define SVGA_CAP_CMD_BUFFERS_2 0x04000000 #define SVGA_CAP_GBOBJECTS 0x08000000 #define SVGA_CAP_DX 0x10000000 +#define SVGA_CAP_HP_CMD_QUEUE 0x20000000 #define SVGA_CAP_CMD_RESERVED 0x80000000 |