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sna: Only carry 32/64-bit compat wrapper for drm_mode_get_connector 

This is the only structure we care about that has u64 and its size is
not a multiple of u64s.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2013-10-16 09:52:14 +01:00
parent a63b4d5a07
commit 2068492fba
1 changed files with 26 additions and 34 deletions
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60
src/sna/sna_display.c
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@ -42,6 +42,7 @@
#include "sna.h"
#include "sna_reg.h"
#include "fb/fbpict.h"
#include "intel_options.h"
#include <xf86Crtc.h>
@ -58,10 +59,15 @@
#define DPMSModeOn 0
#define DPMSModeOff 3
#endif
#include <xf86drm.h>
#include <xf86DDC.h> /* for xf86InterpretEDID */
#include "intel_options.h"
#include <xf86drm.h>
/* Minor discrepancy between 32-bit/64-bit ABI in old kernels */
union compat_mode_get_connector{
struct drm_mode_get_connector conn;
uint32_t pad[20];
};
#define KNOWN_MODE_FLAGS ((1<<14)-1)
@ -1853,10 +1859,7 @@ sna_output_detect(xf86OutputPtr output)
{
struct sna *sna = to_sna(output->scrn);
struct sna_output *sna_output = output->driver_private;
union {
struct drm_mode_get_connector conn;
uint32_t pad[20];
} compat_conn;
union compat_mode_get_connector compat_conn;
DBG(("%s(%s)\n", __FUNCTION__, output->name));
@ -2394,7 +2397,7 @@ sna_output_set_property(xf86OutputPtr output, Atom property,
val = *(INT32 *)value->data;
DBG(("%s: setting backlight to %d (max=%d)\n",
__FUNCTION__, val, sna_output->backlight_max));
__FUNCTION__, (int)val, sna_output->backlight_max));
if (val < 0 || val > sna_output->backlight_max)
return FALSE;
@ -2590,39 +2593,28 @@ sna_output_init(ScrnInfoPtr scrn, struct sna_mode *mode, int num)
{
struct sna *sna = to_sna(scrn);
xf86OutputPtr output;
union {
struct drm_mode_get_connector conn;
uint32_t pad[20];
} compat_conn;
union {
struct drm_mode_get_encoder enc;
uint32_t pad[6];
} compat_enc;
union {
struct drm_mode_modeinfo mode;
uint32_t pad[18];
} compat_mode;
union compat_mode_get_connector compat_conn;
struct drm_mode_get_encoder enc;
struct drm_mode_modeinfo dummy;
struct sna_output *sna_output;
const char *output_name;
char name[32];
bool ret = false;
int i;
COMPILE_TIME_ASSERT(sizeof(struct drm_mode_get_connector) <= sizeof(compat_conn));
COMPILE_TIME_ASSERT(sizeof(struct drm_mode_get_encoder) <= sizeof(compat_enc));
COMPILE_TIME_ASSERT(sizeof(struct drm_mode_modeinfo) <= sizeof(compat_mode));
COMPILE_TIME_ASSERT(sizeof(struct drm_mode_get_connector) <= sizeof(compat_conn.pad));
DBG(("%s(num=%d)\n", __FUNCTION__, num));
VG_CLEAR(compat_conn);
VG_CLEAR(compat_enc);
VG_CLEAR(enc);
compat_conn.conn.connector_id = mode->kmode->connectors[num];
compat_conn.conn.count_props = 0;
compat_conn.conn.count_modes = 1; /* skip detect */
compat_conn.conn.modes_ptr = (uintptr_t)&compat_mode.mode;
compat_conn.conn.modes_ptr = (uintptr_t)&dummy;
compat_conn.conn.count_encoders = 1;
compat_conn.conn.encoders_ptr = (uintptr_t)&compat_enc.enc.encoder_id;
compat_conn.conn.encoders_ptr = (uintptr_t)&enc.encoder_id;
if (drmIoctl(sna->kgem.fd, DRM_IOCTL_MODE_GETCONNECTOR, &compat_conn.conn)) {
DBG(("%s: GETCONNECTOR failed, ret=%d\n", __FUNCTION__, errno));
@ -2635,7 +2627,7 @@ sna_output_init(ScrnInfoPtr scrn, struct sna_mode *mode, int num)
return false;
}
if (drmIoctl(sna->kgem.fd, DRM_IOCTL_MODE_GETENCODER, &compat_enc.enc)) {
if (drmIoctl(sna->kgem.fd, DRM_IOCTL_MODE_GETENCODER, &enc)) {
DBG(("%s: GETENCODER failed, ret=%d\n", __FUNCTION__, errno));
return false;
}
@ -2652,7 +2644,7 @@ sna_output_init(ScrnInfoPtr scrn, struct sna_mode *mode, int num)
compat_conn.conn.count_encoders = 0;
compat_conn.conn.count_modes = 1;
compat_conn.conn.modes_ptr = (uintptr_t)&compat_mode.mode;
compat_conn.conn.modes_ptr = (uintptr_t)&dummy;
compat_conn.conn.count_props = sna_output->num_props;
compat_conn.conn.props_ptr = (uintptr_t)sna_output->prop_ids;
@ -2682,7 +2674,7 @@ sna_output_init(ScrnInfoPtr scrn, struct sna_mode *mode, int num)
goto cleanup;
}
if ((compat_enc.enc.possible_crtcs & (1 << scrn->confScreen->device->screen)) == 0) {
if ((enc.possible_crtcs & (1 << scrn->confScreen->device->screen)) == 0) {
if (str) {
xf86DrvMsg(scrn->scrnIndex, X_ERROR,
"%s is an invalid output for screen (pipe) %d\n",
@ -2691,8 +2683,8 @@ sna_output_init(ScrnInfoPtr scrn, struct sna_mode *mode, int num)
goto cleanup;
}
compat_enc.enc.possible_crtcs = 1;
compat_enc.enc.possible_clones = 0;
enc.possible_crtcs = 1;
enc.possible_clones = 0;
}
output = xf86OutputCreate(scrn, &sna_output_funcs, name);
@ -2721,7 +2713,7 @@ sna_output_init(ScrnInfoPtr scrn, struct sna_mode *mode, int num)
output->driver_private = sna_output;
for (i = 0; i < mode->kmode->count_encoders; i++) {
if (compat_enc.enc.encoder_id == mode->kmode->encoders[i]) {
if (enc.encoder_id == mode->kmode->encoders[i]) {
sna_output->encoder_idx = i;
break;
}
@ -2730,14 +2722,14 @@ sna_output_init(ScrnInfoPtr scrn, struct sna_mode *mode, int num)
if (sna_output->is_panel)
sna_output_backlight_init(output);
output->possible_crtcs = compat_enc.enc.possible_crtcs;
output->possible_clones = compat_enc.enc.possible_clones;
output->possible_crtcs = enc.possible_crtcs;
output->possible_clones = enc.possible_clones;
output->interlaceAllowed = TRUE;
/* stash the active CRTC id for our probe function */
output->crtc = NULL;
if (compat_conn.conn.connection == DRM_MODE_CONNECTED)
output->crtc = (void *)(uintptr_t)compat_enc.enc.crtc_id;
output->crtc = (void *)(uintptr_t)enc.crtc_id;
DBG(("%s: created output '%s' %d [%ld] (possible crtc:%x, possible clones:%x), edid=%d, dpms=%d, crtc=%lu\n",
__FUNCTION__, name, num, (long)sna_output->id,